This Khmer-era temple includes a lintel that was stolen and displayed at the Art Institute of Chicago for years before returning to Thailand.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

A giant portrait of an ancient king looms over the river.

A small town Romanian cemetery filled with darkly humorous gravestones.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This beautiful Croatian fortress is haunted by legends of forbidden love.

Croatia's "hairy stone" fortress is one of the most well preserved Istrian castles.

Extraordinary rock formations in open Peruvian fields.

Lima’s Museum of Anthropology is lined with thousands of elongated human craniums.

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

Death rituals and sacrifice inside a Peruvian megalith.

Plundered and left asunder by grave robbers, this ancient necropolis has been painstakingly pieced back together.

A remarkable geological formation resembling a forest made of stone.

An abandoned 19th-century iron factory perched along the outskirts of an idyllic village.

An unusual cave filled with rare alien-looking aragonite formations.

The ruins of a 13th-century monastery that long served as a place of refuge from wars and raids.

After 11 years of reconstruction work, Slovakia's finest hilltop chapel complex is finally reopen to the public.

A perfectly preserved hill village where the buildings are painted like white lace.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.