Abandoned Key System Building in Oakland, with photos and descriptions of the building. 1. It's An Artifact from the Art Deco Era.The Tribune Tower was completed in the 1920s and is a stunning display of art deco architecture. The Tribune Tower is a 305-ft. (93 m), 22-story building located in downtown Oakland, California. Explore inspired architecture, design, and luxury living with a view at Atlas Oakland - downtown Oakland's landmark, LEED-gold residential building. A highrise window broke Wednesday, sending chunks of glass down into a car parked on the street below in downtown Oakland, authorities say. Another common feature was porthole windows, which can be seen on the 14th St. side.