An isolated dive site teeming with cnidarians.

A collection of objects supposedly singed by the hands of souls in purgatory.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

Structure built from the skulls of vanquished foes.

Mysterious painted skulls in Moravia.

Mummified monks and the accidentally interred, in a 17th-century crypt.

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