Vollis Simpson built a collection of what he calls "whirlygigs" on his property in Wilson, North Carolina, that came to be known as Acid Park. According to an urban legend, Simpson's daughter died in a car wreck while on LSD and the whirlygigs are her drug-induced visions as interpreted by her father. None of this is true, but the eight moving sculptures are there. Read the real story and see more pictures at Atlas Obscura. Link
(Image credit: Flickr user the1secondfilm)