Centro Cultural Universitario Tlatelolco
If you fly into Mexico City at night, there's a good chance you'll spot the tower of this museum; located on the south side of the Plaza de las Tres Culturas, its stoic modernist facade is clad in Moorish starbursts of red and purple neon. The museum hosts regularly rotating exhibitions of contemporary art, often experimental in nature, and a moving permanent memorial to the 1968 massacre that occurred on the plaza, installed in honor of that event's 50th anniversary.