The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

Check your calendars; you might be attending a drive-in movie or sitting next to a fashion runway.

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

Depression-era fun lives on in this Harlem museum dedicated to the sport of the street.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

One of only two commuter aerial tramways in the United States.

Locals use these rock pools and waterfalls for swimming and cliff diving.

A 19th-century church in South Mumbai built to commemorate those who died in the First Anglo-Afghan War and the retreat from Kabul in 1842.

Bohemian paradise covered in majestic forests.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

The largest manmade caves in Europe now function as a motorbike club's headquarters.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

This semi-secret storybook hedge maze is also the oldest garden in the city.

Semi-mystical manmade towers of rocks decorate this rocky seaside.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.