A stunning landscape of bunkers that once stored chemical weapons.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

100-year-old shipwreck you can walk up to at low tide.

This landmark cemetery in Boston was created more than 300 years ago.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Site of the greatest known waterfall that ever existed.

Old Danish castle immortalized in Shakespeare's Hamlet.

Huge winged monument in the United Kingdom.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

Single runway interrupted by a busy road that cuts across its middle.

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

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Only known mainland rookery of the threatened Stellar sea lion.

A walk through the historic city center, under the streets of Seattle.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

The middle finger of modernity.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The fairy tale castle of the "fairy-tale king."

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.