A battle between nature and architecture in the Cambodian jungle.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

1513 Turkish world map, full of European state secrets and snarky commentary.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

The ornate miniature mansions were built for Istanbul's feathered residents.

This famous city eluded concrete detection until the early 2000's.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A marvel of Byzantine engineering under the streets of Istanbul.

Roman ruins top white travertine terraces formed by ancient hot springs.

This 11th-century castle sits so low you can't see it behind the surrounding buildings.

One of the great math minds of the 17th century is underfoot in this 900 year old Dutch church.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

The 20-mile causeway that separates the Netherlands from the sea.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

A miniature city, once ruled by the Queen of the Netherlands.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.