Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

A battle between nature and architecture in the Cambodian jungle.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The mummified relic of St. Antoninus.

The largest and most famous wax anatomical collection anywhere in the world.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

This natural wonder is disappearing at an alarming rate.

It took 160 years to complete the most ornate church in Ecuador.

An abandoned Byzantine fortress and notorious prison.

A bronze sculpture of Lenin’s likeness outside Havana surrounded by 12 human figures in solidarity with the Bolshevik Revolution.

Did Inca children also slide down these smooth rocky slopes above Cusco?

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

An extraordinary "City of Caves" carved from solid stone.

The unique funeral practices of the Toraja can be seen here with graves carved into caves and hung off cliffs.