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

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Notorious artist squat renovated into legal studios.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

A secluded fortress from the days of the Crusades that offers breathtaking views.

Deep in the Negev Desert, the world's tallest solar tower looks like a sight straight out of science fiction.

The abandoned shell of what would have been the Jordanian royal family's summer palace.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

An iconic view point of the Sea of Galilee offers a look into Israel's past.

A magical oasis in the middle of the Negev Desert.

This nightmarish children's plaything was left grotesque to help kids conquer their fear.

Squeezing inside this deep, narrow canyon reveals a festival of desert colors.

This amazing ancient cave was kept secret for seven years to protect it from the public.

A serene desert oasis speckled with ancient artifacts.

The most peaceful "country" in the Middle East.

You can row a boat through this ancient underground reservoir.

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

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.