The One Room Schoolhouse
This is a historic 19th century school house that the nice folks over at the Denver Botanic Gardens have keep in superb condition. Hard to imagine a bunch of kids crammed into this one house room. I don't have ADD but I bet I would if it was a hot 100 degree day in August. I would definitely not be able to stay still and focus. At least the have a legit school bell at the top of the building.