(Photo: Brian Barbutti)
The United States has the White House and Argentina has the Pink House. That's what the presidential palace in Buenos Aires is called--the Casa Rosada. The color comes from a traditional blending of lime and the blood of oxen. It's been that color since 1870. This one of 13 visually striking presidential residences around the world, including a very modern-styled building in Brasilia and a beautifully blue-tiled building in Seoul.