A playful symbiosis of art, nature, architecture, and garden design, a hidden gem off the beaten path

A beautiful but toxic fountain of mercury.

The medieval center of the Islamic world was also once the seat of Saladin's sultanate.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

This Peruvian bone silo lined with hanging human skeletons and hundreds of skulls is topped with a remarkable Michelangelo replica.

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

The depictions of slaughter are surprisingly detailed at this mysterious ancient site.

A 5,000-year-old city in Peru holds the remains of a stunning set of astronomically-aligned pyramids.

This iron building in the Amazon allegedly shares an architect with the Eiffel Tower.

A kitschy Italian medieval-style castle incongruously located amidst one of the most historic towns in the Peruvian Amazon.

An Archaeological Wonder of Peru, and the largest stone ruin site in the New World.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

The shockingly unspoiled Peruvian tomb of the Lord of Sipan was once guarded by a footless warrior.

Peru’s only toy museum houses everything from pre-Inca whistles to lead soldiers and terrifying dolls.

The outside of this exposed Moche pyramid is covered with striking colorful adobe friezes.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

Standing 26 feet high and 13 feet in diameter, is this the world’s smallest volcano?

In this tiny museum, an unusually-shaped skull that some claim as evidence of extraterrestrials.

The geomorphology of the Turia Valley could easily be mistaken for Utah or Arizona.

Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

The facade of this 16th-century building is decorated with carvings of 300 seashells.