Bonzai railway
If you want a rabbithole, search z gauge.
And if you wish to disappear deeper into trainology, there's an astonishing amount of stuff trying to work out the island of Sodor.
(, Sun 27 Nov 2022, 7:45, Reply)
Banzai railway is more exciting.
(
FeralCatMan Unusual disease collector., Sun 27 Nov 2022, 16:32,
Reply)