The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

This ancient oak tree sheltered accused "witches" in the 17th century.

A former electrical substation is now home to an eccentric junk art masterpiece.

This last stalwart of the now-forgotten feminist restaurant movement has been serving food in an activist atmosphere since 1977.

To find the "unicorns of the deep" you've got to go downstairs.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

This museum in the woods evokes the work and lives of Michigan's 19-century lumberjacks.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

A fruit-loving town welcomes visitors with a giant melon set against the sky.

A collection of vintage liaison aircraft kept in flying condition and on display at an airfield in San Antonio.

The summer home of the largest colony of bats in the world.

A mother's mourning for her lost son is remembered in this small park embedded with his memory.

Ruins of a once-opulent grand Victorian resort.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

The world's first and only escalator for lazy bicycles and their daunted riders.

Built in 1911, the Tees Transporter Bridge is one of only six transporter bridges still in operation.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.