This bar hosts an ever-evolving napkin art installation devoted to an American president.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

In Hong Kong, a fairytale flower tunnel is hidden within the gardens of a public housing complex.

The romantic botanic tunnel feels like a well-kept secret.

A repurposed railway tunnel with otherworldly acoustic characteristics.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

Home to the longest wooden escalators in the world.

On a remote island, legend has it that a fiddler and his wife were turned to stone.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

The 5,000-year-old megalith is believed to be Scotland's tallest standing stone.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

A trio of giant megalithic stones in the middle of a golf course.

More stones than Stonehenge, all scattered within a windswept landscape sure to enchant 'Outlander' fans.

This freshwater spring fills with 10,000 gallons of water per minute.

This museum showcases the art of ancient sword-making.

A monument to the groundbreaking environmentalist sits near the place where she first experienced the sea.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.

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

An intricately carved Viking church overlooks a glistening fjord.

The former home of a foreign correspondent who reported on Korea’s independence movement has been restored and is open to the public.

Only a few pieces remain of a grand 16th-century water clock that once announced the changing hours with the sound of bells, gongs, and drums.

The supreme shrine of the state.