I'll also join!
Temple of the Nighthawk - Phantasialand (
RCDB)
Familieachtbaan - BillyBird Park Hemelrijk (
RCDB)
Rodelbaan - Waarbeek (
RCDB)
Temple of the Nighthawk is a win-win situation. If it gets demolished Phantasialand will just build another awesome coaster!
Familieachtbaan is (if i'm right) world's first energy neutral coaster so it should be able to operate just fine after the huge apocalypse.
Rodelbaan because it's such an old coaster located pretty near to me but I still haven't done it.