This large round boulder is said to emit spiritual power, but it may just be magnets.

The hellish conditions of this abandoned mine that snakes beneath the Pacific Ocean gave it its diabolic name.

Towns with a resource known as "white gold," valuable enough to fight a war over, now stand ghostly and empty.

The ominously named cave is home to some remarkable ancient art.

This 18th-century tower is locally iconic.

This singular art museum in São Paulo is unique inside and out.

A jungle in the heart of São Paulo reminds visitors of what Brazil looked like untouched by man.

A beautiful riverside mansion where the intellectual life of early-20th-century Argentina flourished.

This abandoned horse racing track was an exercise in hubris from its inception.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

A mysterious spirit totem at the edge of Navajo lands.