The ruins of this medieval tower are destined to crumble into the sea.

A home for skateboarders with sweeping views of the Atlantic Ocean in Morocco.

Morocco's Argania trees are infested with nut-hungry goats.

Hidden behind mountains in Morocco, a remote town hides a thriving surfing community.

The best-preserved ancient theater in the world.

Hidden up a dusty track off the Georgian Military Road is this fascinating waterfall with mountainous views.

Despite being tiny and rural this Georgian airport looks like a sci-fi boondoggle.

At this ancient settlement at the foot of Mount Babadağ, honeycomb tombs are carved into a round cliff.

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

A Turkish ghost town abandoned in a population exchange with Greece.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

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

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

This mysterious cliffside carving of an ancient Hittite deity has baffled scholars for centuries.

This wrecked ghost ship has been rusting on a Greek beach since the 1980s.

This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

A magical, if a bit tacky, 1960s castle conjures up medieval fairytales and Greek mythology.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

Bridge that died in war and was resurected.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

The remains of a sunken military ship wreck visible through clear water.