The caldera of this mini-volcano has been turned into a naturally heated mud bath.

An extraordinary "City of Caves" carved from solid stone.

A hotel and restaurant serving as the mecca of kitsch.

A white Buddhist temple with a golden restroom.

A huge musical instrument played by the ocean.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

Recently restored menagerie of Victorian-era beasts.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

Thousands of well-dressed mummies below a monastery.

A church of bones, decorated with 40,000 human skeletons.

Week-long block party becomes a competition for the best decorated street.

The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

Visit this odd display of indigenous style in Argentine wine country.

Pompeii's less famous neighbor is still revealing her secrets.

A mysterious castle built as a monument to lost love.

The largest self-built castle in the U.S., six decades in the making.

A botanic garden full of trees twisted into fantastic shapes and positions.

A 16th-century horror show built in a lovely Italian garden.

Home of an evil witch famous within southern folklore.