Guggenheim Museum Bilbao

Along one of the museum’s facades is the Fountain of Fire, designed by Yves Klein.

An excerpt from the article 13 facts about Guggenheim Museum Bilbao

It looks exceptionally beautiful during nighttime shows against the titanium-scaled corrugated walls of the museum building. Embedded in the fountain is another sculpture, “High Tree and Eye.” It consists of 63 interconnected spheres, which, thanks to their arrangement in an irregular order, reflect other objects, giving the whole sculpture a dynamic appearance.