Jeez, I knew Train Spotting was a thing - now it seems so is Bus Spotting - at least in one person's attic anyway.
I personally love travelling long bus journeys. I hate city buses but I love nothing more than hopping on an Expressway service and watching the countryside go by. Trains are great but you just see stations. Buses bring you through towns and villages you've never heard of.
My longest ever bus journey was 16 hours. Chisinau to Lviv, in July, with no aircon.
Glad I did it but not a fuckin hope would I do anything like that again.