Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

Wondrous stalactites house thousands of bats in these African caves.

There is only one place in the world where the corners of four nations come together.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

The world's only silo that was topped by two revolving restaurants has unfortunately been demolished.

After years of being casually peed on by humans, this tree is peeing back.

Fantastic views and thousands of love locks.

Carved fountains poignantly placed in parks and in front of special monuments.

This unattributed sculpture in Amsterdam is hiding in plain sight.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

A 15th-century granary that played the role of futuristic slave quarters in the world of 'Star Wars.'

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

Legends surround this jagged rock formation in the New Mexico desert.

This giant Christ statue was a failed attempt by Indonesia to dissuade East Timor from demanding independence.

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

A hidden treasure of an abandoned city lies deep in the jungles of Campeche, Mexico.

To the great disappointment of doomsdayers, this codex merely contains records of the Moon and Venus.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.