The world's longest known cave system.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Budapest's Communist-era statues, banished to the suburbs.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Museum dedicated to the terror regimes of Hungary.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.