The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

Once part of an ancient international harbor, it's now an all-you-can-eat shrimp buffet for flamingos and other water birds.

Ancient stone dildos and other odd pieces of medical history are displayed at this quirky Cyprus gem.

The water here is so clear you can see the mysteriously sunken ship from the surface.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

The ancient abodes are a testament to human ingenuity amid harsh climates.

A 1,500-year-old ghost settlement is slowly fading away.

Ottoman-era houses lovingly preserved.

This hidden gem is bathed in beautiful natural light.

A beautiful 19th-century Armenian mansion is preserved above an unassuming cafe.

Naturally protected city carved from a rock face.

Live a night as a Byzantine King, with a minibar and private jacuzzi.

This graffitied 19th-century building was a prototype of European industrial architecture.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

A staircase made of gravestones leads up to this church built into a giant rock.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

The abandoned summer estate of the former Greek Royal Family.

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

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This field of half-buried stone crosses was the burial place of a sect of heretical gnostics.

The ghost town where the villagers refuse to leave.