Hey Tim! Still waiting on that cup of tea, mate. I’m parched in fact.

I was like "Oh, there's a random guy watching Tim talk to himself," then it was Geoff and I burst out laughing.

Best. Collab. Intro. Ever. I giggled. Loads. It was very well-acted, too!

OK, I admit it. I laughed way too much when the text "They didn't have tea" appeared and the mournful music started playing. First of all: I would not expect tea to be as available in France as it is in England. Secondly: it felt like the build-up to trying to buy some tea from the Boulangerie - Pâtisserie was going to produce a good surprise. Thanks for the chuckle and smiles.

the thunderbirds piano cover is the best yet

The use of the theme from Pointless after mentioning the lack of need for the track upon the government's purchase of the West Railway (5:00) was perfect.

I've just noticed that Tim's channel is nearly as big as Geoff's now, counting by subscribers. 🎉🎉🎉🎉🎉🎉🎉

I grew up in Gometz-La-Ville and my parents still live there. I remember the old aerotrain roting in an abandoned hangar behind the village's school, open for anyone to come in. It was pretty impressive even in its sorry state. They razed everything to build a new road and the only thing left is the sculpture on the roundabout. It is weird to see this on a youtube channel I follow. ;)

The "You can still just about imagine the old steam trains coming through here" + _train whistle sound effect_ which was perfectly timed with the shot of the person vaping had me rolling. There's some very underappreciated subtle comedy in your videos :)

Construction on the line continued after 1909 probably because there was hope it could serve as an alternative route to relieve congestion on the existing line which only had 2 tracks. This line was eventually upgraded to 4 tracks in the 1930s which made the Gallardon line useless. The nothernmost part of the line is still in use though. It's now part of the LGV Atlantique, the high-speed line which links Paris to western France !

You make a good duo, guys. Sorry to hear that the fact the track is tea-shaped was no consolation to your buddy :p Also, first time I hear about the rocket booster (or maybe I just forgot). I only ever knew about the propeller and the jet engine. Still, I love the aérotrain, it was killed by the TGV, which was a better idea, and it probably would not hold the comparison with a maglev, but still love the concept :)

Thank you Tim for joining the crazy bunch of people showing Railways and related things, as quirky as they may be. You really bring joy into our lives. A big plus for the community.

Seeing Geoff show up made me smile instantly! Really can’t wait to watch the rest of this now, more than even when you normally release a video!

Any youtuber: *thinks about doing an abandoned railway* Geoff Marshall: "You rang?"

The French hovercraft that used to run out of Dover was named "L'ingenieur Jean Bertin" in his honour. It broke down a lot...

Interesting to see French engineers taking the Mythbusters approach to things: "Just strap a rocket to it!"

Two videos of Tim AND Geoff, in France at the exact same time. What a day !

The appearance of Geoff was so amazingly done!

1) I wish I'd watched this before Geoff's video - the reveal would have been *so* much better! 2) I think I did know there had been a rocket-hovercraft-train, but learning more about it is wonderful!

The old railway still exists (with its rails) between Chartres and Gallardon and you can ride a rail bike on it.

" And in 1907, after years of bickering about the exact route, and despite having absolutely no economic argument for it, the project went ahead. Which sounds daft enough, but two years later the State Railway bought the West Railway. And the project STILL went ahead. Why? I don’t know." Probably because it was nobody's job in the administration to point it out. France lost 1 billion euros this year, just because someone in the transport administration didn't bother to file an official complaint in time. That money was offered by a European court to all the clients injured by the illegal price cartel formed by the main truck manufacturers, you just had to file a complaint the same year.

I audibly gasped when you walked past Geoff! Fantastic collab.

Even a retro Tomorrow's World theme hidden in there.. lovely!

Best intro since Geoff's outraged cameo that someone else was doing a Least Used video, and Vicky suggesting Tim was Simon Pegg! Still waiting for Toutes les Gares!

Tim and Geoff, my two favourite man crushes, together in the same videos. Today is a GOOD day! (I might have said this in the comments on Geoff’s video).

The timing of that opening was so good!

Theme from UFO and Thunderbirds definitely appropriate, Aerotrain totally looks like Gerry Anderson creatioy

Cool about la Hacquinière being the least used station on line B because I'm actually about to move into a flat just next to it. Always good to know local railway trivia before moving into a place.

That thunderbirds cover, man just love your editing

This is all kinds of Epic. Thanks to you both, what a fun adventure.

Tim, I very much enjoy all your videos… but this one I loved! The interaction of you and Geoff was great and what was even better was the editing of the both the video and audio. As Yanks like me will often say, “You hit a home run with this one.” Thanks again!

Geoff explaining that he could easily fall of explains and sums up so much about British safety laws😂

Hi Tim, my dad was one of the engineers working on that record breaking machine... Nice to see your footage, it brings up memories from my childhood! I had forgotten about that place Gometz, often heard from dad back in the day... A big up to you!

I went nearby a few weeks ago, to visit what was left (not much) of the line between St-Rémy-les-Chevreuse, end of the line B, and Limours. Limours had two stations, one of them for what wasn't the line B yet and the other for the Paris to Chartres via Gallardon line. This one was never completed, that's why it ended up being abandoned. Today, the the high speed line going through Massy-Palaiseau reuses a part of its infrastructure.

Tim's videos are alway a treat, but what a fun crossover! EDIT: Been 'round Geoff's. Previous point reiterated; far more than half Tim's videos are enjoyable.

Yeah! The aerotrain, so brilliant! Can't wait for the next part. Aside the aerotrain, did you know, that the test facility of the aerotrain was also shared with the facilities of the SAFEGE suspended monorail?!? This particular system didn't have much of a success here in Europe, but in Japan there are two fully operational commercial commuter systems in the cities/municipalities of Shonan and Chiba buld by Mitsubishi.

Did I miss the second video of the rocket train? Tim you are making supurb video's. The mix of education, humour and tourism advise is great. They should be aired on the Discovery Channel

I died laughing when Goeff just popped up and basically completed your sentence for you 🤣

I have no idea how I managed to miss this video, I loved it and now to re-watch the Least Used Paris Metro Station. Great work as always Tim.

You guys compliment each other very nicely…

Wow ! So I never knew about this train. Brilliant. - And now you've done a collab with Paul and Rebecca AND Geoff, have I missed the one with Jago Hazzard ? Keep up the wonderful entertainment please.

I like that Geoff uploaded his video and the notification didn’t even have time to disappear before Tim’s video popped up

Geoff is awesome! So nice to see 2 interesting fellows in a video together

Poor Geoff didn't even get to climb any highest urban peaks! Happy to see a collab between y'all.

Im so happy about this collab, you two are some of my absolute favorite youtubers and just so sympathetic :D

Merci messieurs! C'était un réel bonheur de vous voir travailler ensemble. J'en veux encore, et idéalement à tous les ans svp! Thank you gentlemen! It was an immense treat to watch you work together! But now, I want more or this collaboration, and every year please! Gros câlins de la Province de Québec, Canada. Big hugs from the Province of Québec, Canada

My family is in Dordogne, every couple of month i get to ride down from gare Austerlitz. The aerotrain is like a travel buddy to me.

"This is Lady Penelope's care from Thunderbirds...." That literally made me laugh out loud for a solid minute. Thank you. And the Thunderbirds theme playing underneath! Well done, and thank you!

That intro was rather unexpected, what a great idea for a collaboration!

Unaccountably happy for ten minutes; thank you, both, for sharing your trip to see a lump of concrete in a French field...

This channel is golden. Im just a bloke from Asia with little to no internet in travelling, but this type of content delivery caught my eyes. Both of you deserve subs its highly underappreciated

Who needs TV, when there are quality videos like this on KZfaq? keep it going guys!

Abandoned French Railway? Tick Wacky French Engineering? Tick Geoff Marshall in France? Tick The intro theme from UFO?!? Mega-tick! Tim, you have truly outdone yourself on this one. Bravo!

Tim and Geoff doing a video together, on a topic I find really fascinating, just made my night. Thanks guys!

Love this. French engineering has something Quirky about it. The old Citroen cars you could adjust the height of! Then the cars (again Citreon) with small engines.the the mopeds - bikes with small engines.

This is the content we've always needed. Fantastic.

We all remember Geoff and Jay went up the A1 in a mini. Can we see Geoff and Tim go up the periferique in a deux-chevaux???

I've seen this roundabout a few times and I never knew what this weird plane looking thing was. I live 10min away from the south of the second track you teased at the end of the video and never heard of it before. Thank you so much for making us discover those stories, they're wonderful!

It was great to see you on Geoff's channel, I've been a fan of both of you for a while now.

Good use of the theme from the OG Treasure Hunt, "La chasse au(x) tresor(s)", which pretty much every production other than ours used.

I knew colab was comimg early december, and still sudden Geoff managed to suprise me. Good job, gentlemen.

8:05 I appreciate the perfect voice-over of this guy smoking under the bridge. That's turning b-roll into gold.

Really good music choices, there. Amusing and nostalgic.

What a great start to the week. A Tim video after an absence. Not just any one either - one with Geoff as well. And rockets. Thank you.

I love seeing so much of Tim in this video! Fascinating topic, of course, but made more fun to watch by getting to see our favorite KZfaqr’s smiling face.

I love this collab! You guys have been threatening to do one since forever. I also love the level of research Tim does in his videos, complete with old-timey footage of the rocket testing. Kudos, Tim and Geoff!

I love it when some of my favourite KZfaqrs Collab. It's such a cool suprise.

This is definitely the channel for fascinating quirky stories about bizarre obscure esoteric historical railway artifacts ...

And you've done this video during a french lockout ! Congratulations !!!!

It's really funny and disturbing to watch this video, as I grew up in Orsay and perfectly know that forest, BC I spent my childhood init! And for the fun fact, you can actually ride on sections of the old railway (in a car tho) as I has been used as a base for the RN 118 between the Villebon-État station (where you can see a locomotive of the line) and after the viaduc d'Orsay!

that edit of the vape smoke over the steam whistle had me rolling

Love the UFO and Thunderbirds soundtracks (somewhat played like silent movie piano) to illustrate Jean Bertin's crazy machines.

There's something strangely melancholic, nostalgic about seeing the remains of such a project today. Here were tried machines at the forefront of imagionation and innovation, and now, nearly nothing remains but the memories of it all, of one time when some people came together to dream big.

Oh man, so awesome. I nearly spit my coffee out when Geoff popped in.

Love the thunderbirds references!

Tim. Would you consider making a video on the Transrapid testtrack in the Emsland, Germany. could be interesting topic

1:44 La Hacquinière is not the least used RER station, but the least used RATP RER station. The least used RER station is Sermaise (or Boigneville if you consider that this station is still on the RER).

Love the music. Knowing that you play it yourself is amazing.

Nice seeing you two together! That looks like an adventure to have and a reason to visit Paris again. When Geoff mentioned this video I thought of Petit Ceinture but this is a lot more interesting. The history of the Aerotrain is fascinating.

Finally my two favourite train vloggers together in France.

Dear Mr Tim I watch your movies on my farm in the jungle on the Equator it is real joy to see them, the things you find to film and history you add to the framing of the pictures is a delight to see, made with a nod to humor all are quiet delightful.

Great video. A similar experiment was carried out in the Cambridgeshire Fens with the Hovertrain.

Now that is how to do a collaboration! Thanks Tim, you had me laughing out loud.

Loving all the cross-overs. "... and in next weeks four presenter bumper episode Tim and Geoff meet Jago Hazzard in Paris, for an episode of Les Histoire du Metro, whilst Tom Scott provides extra surprising background info on the forgotten foundry where they make all the French rails ..."

Awesome cooperation with Geoff, I did not see that coming at 0:54 :D

I can't get enough Geoff and Tim action

Everytime you upload tim, I'm like "Must watch." Keep up the wonderful work!

I'm so happy with this video! It was great seeing you two together and I think we all need more of this! :D

I keep learning things about the extended Parisian region on you channel. I've lived here the last 15 years.

OMG! THAT WAS GREAT! AMAZING TO SEE YOU TWO WORKING TOGETHER IN PERSON!

Did anyone else struggle with choosing which one to watch first when you saw both at the same time? 😅

Merveilleux et tres amusante. I am so missing France. Anyone not subscribed to Geoffs channel should definitely do so now..

That was precious! I'm so glad you two finally got to meet and geek and that Geoff finally got his tea. Thanks Tim. It was fabulous!

Note to Geoff, pack teabags next time for any possible tea emergencies that may/will arise….easy peasy. Also, thanks for the link to AJB website, I had a lot of fun checking it out, translating it to English and I especially enjoyed reading about the activities that they get up to (with photos). Thanks again, I always enjoy your videos. FAB

I love learning things on my country from someone that is not french. It would be a pleasure to meet you if you come near Orléans to see the tracks of the aerotrain! My grandfather remember when it was in test here.

Great fun! I also enjoyed mustard’s video on hovertrains. I look forward to part two!

Good to see the original hovertrain line - the "big one" is quite something as it strides across central France. Sadly, the UK equivalent got demolished very quickly - we seem to be efficient where we don't need to be in the UK.....

The Geoff reveal was pure gold [doffs cap]

Thanks so much Tim! Given the state of the world and the planet, I'm grateful to smile and have a laugh!!

Love the " coincidence " at around 8 mins in, of you mentioning "imagining steam trains "...etc, just as someone chuffs out a pile of vape that I've often likened to an A4 at full belt. LoL. Excellent.