I’ve got to say, after having visited yesterday; Legoland Windsor seemingly love a good smell pod!
Dragon has a very distinct Medieval smell in the dark ride section, Flight of the Sky Lion uses numerous smells, Monster Party uses a musty smell in the pre-show area, and a smell of desserts during the actual Madhouse section itself, and there are probably more I’m forgetting!
The Saw and Wickerman stations both have rather great pods there imo.
But my favourite (not a coaster) is rides like Chiapas, Atlantica Supersplash, PotC etc. That bromine/chlorine smell is just heavenly.
I like the smell of old woodies, the decades of baked in oil and grease has a certain charm to it.
At the opposite end of the scale though is any ride with a leaky gearbox, used gearbox oil smells like rotten eggs and is a complete assault on the nose. Anyone who has changed the oil in a cars gearbox or diff will know what I mean....