A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

A vast, otherworldly collection of Buddhist stupas.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

An ancient iron pillar in Delhi that seems to be rustproof.

The Uros people live on floating reed islands in lake Titicaca.

An abandoned Incan construction project left behind a mysterious "doorway."

Mountain of unimaginable riches that bankrolled the Spanish Empire, complete with its own underworld god.

A valley of unique erosion patterns lends to a view like nothing on Earth.

Death road of Bolivia.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Hindu temple of the dead home to hundreds of long-tailed macaques.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

An isolated dive site teeming with cnidarians.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Race through the maze, get your name on the sign.

Thousands of well-dressed mummies below a monastery.

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

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The "Prussian Versailles" that is as glorious today as when it was built.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

World's largest bell sits on the grounds of the Kremlin in Moscow.

A castle perched precariously over the Crimean Sea.