Big Mattel
Believe it or not, this is actually on the Mattel toys campus in El Segundo, California. Recently, this campus has moved since Mattel merged with Disney, so this logo isn't going to last much longer. If you want to catch a glimpse while you can, go to – 33.921277, -118.391674 on the map.
A Swimming Pool on the Water
Located in Berlin, Germany (aka the party capital of the world) this swimming pool is connected to a popular day/night club. During the day, the pool shows up as a giant blue swath on an otherwise gray canal. At night, this place lights up like a beacon.