Coyoacán is in the southern part of Mexico City. It was a town of its own until about 1950, when it was swallowed up by the burgeoning conurbation of Mexico City. Centered around the busy Plaza Hidalgo, the district's main square, it is a higher middle-class suburb, with certain bohemian and artistic undertones. It was home to Frida Kahlo and Leon Trotsky, and the houses the two lived in are now both museums. It can be reached by metro line 3.