“Marcel Duchamp’s enigmatic assemblage Étant donnés: 1. La chute d’eau, 2. Le gaz d’éclairage (Given: 1. The Waterfall, 2. The Illuminating Gas) has been described by the artist Jasper Johns as “the strangest work of art in any museum.” Permanently installed at the Museum since 1969, this three-dimensional environmental tableau offers an unforgettable and untranslatable experience to those who peer through the two small holes in the solid wooden door.”

Taken from the Philadelphia Museum’s website

I want to go to Philadelphia right now. I have been obsessed with this piece since I learned about it last year in my art class. Duchamp was such a mysterious character and he was secretly working on this piece for twenty years before he died .