This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

This eclectic architectural gem played witness to Zurich’s colonial past.

These spooky and unusual stone formations create an underworldly landscape.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A hands-off space for graffiti artists to hone and display their skills.

London's old-school healing garden.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

This abandoned, turn-of-the-century astronomy hub is now the subject of more photographs than it ever took.

The highest peak in mainland Spain is said to be the final resting place of a Muslim king.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

A lush indoor jungle fills this bustling Madrid transportation hub.

Blue-green pools and smooth stones comprise one of Spain’s most idyllic hidden wonders.

Southern Mexico under the influence of mushrooms, ceremony and celebrity.

The pan man stands as a testament to the functionality of American cast iron cookware.

One person's lost luggage is another person's treasure.

This botanical garden has been nicknamed "Alabama's Little Corner of Greece."

One of almost 200 confirmed impact craters in the entire world, untouched for tens of millions of years.

This abandoned bridge is now a favorite haunt for graffiti artists.

One of the best places in Florida to spot rare, carnivorous pitcher plants.

Though nicknamed the “Russian Freighter,” this ship was actually sunk off the coast of Pensacola by the U.S. government in a top-secret operation.

The 44,000-ton aircraft carrier was purposely sunk to create an artificial reef teeming with life.

A humid oasis combines recreation with exploration in a unique underwater cavern.