Perhaps foolishly, we've let tube geek Geoff Marshall leave the confines of London. He's playing on the 'big boy trains' for once, on his own personal project, All The Stations.
Along with Vicki Pipe, he's taken on the challenge of visiting every railway station in Britain, a crowdfunded project, and they're making short videos along the way to document their progress.
We took the opportunity to quiz Geoff on all things train related, including the furthest you can get from London on a single train, the biggest 'mind the gap' scenario on the train network... and whether he can pronounce that long Welsh station name. You know the one... Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch.
(Sorry we made you miss the viaduct, guys!).