Take a dip beneath the stalactites in this amazing cenote.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

The anatomical-pathological collection of a man who changed surgery.

105-foot wide giant metallic flower blooms anew every day in the heart of Buenos Aires.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

An epic sculpture depicting a wagon and straining oxen.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Pop culture has helped to keep this iconic British building from being destroyed.

Repository for more than 22 million pickled specimens.