This bazaar is one of the oldest in the Arabian world.

A section of the desert with an array of unusual sandstone and limestone formations.

This remote British Imperial telegraph relay outpost drove men insane.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This four-story steel sphere in Maryland was used to test biological weapons.

A popular oddity on display in a stately building, offering a symbolic commentary.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

3/4-scale model of the White House in Atlanta, Georgia.

More than five miles of underground passageways.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

The only quarter of the Old City not dedicated to a major world religion.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

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

A serene desert oasis speckled with ancient artifacts.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The home of the Dead Sea Scrolls is an abstract modernist dream.

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

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.