Considered one of the world"s most important architectural works of the past few decades, the Guggenheim Museum Bilbao celebrates its 25th anniversary today. To commemorate the event, the museum has unveiled a slogan: "Art Inspires Future." The museum has also released a special edition of its logo in which the characteristic Gs of the Guggenheim brand move like gears to shape the number 25. Perhaps they"ll serve cake as well?