The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

This abandoned prison castle has become an imposing gallery of graffiti art.

Less a museum than a bizarre fantasy world created by artists and engineers.

The cultural center preserves the history of the Tlingit tribe, who have lived in this Alaska village for more than 10,000 years.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

The masses at this church incorporate enough moonshine and animal sacrifice that they are no longer recognizably Catholic.

The conquistador's former fortress is the oldest preserved colonial building in the Americas.

The former house of an anthropologist couple displays Lacandón Maya artifacts in a homey atmosphere.

A mysterious pillar in an ancient burial chamber is said to predict how long you have to live.

The stoutest tree in the world.

The singular ruins of a mysterious lost city.

Inside this mountain lies several kilometers of breathtaking caves.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

The largest collection of artifacts from the Olmec civilization, the mother culture of Mesoamerica.