The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

A brick-paved former section of the historic coast-to-coast highway.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

Continuing the tradition of the dime museum in style.

Former farm staffed by mental patients is now a public park.

This dilapidated ship carcass covered in trees is a striking sight.

A spiritual vortex among the red rocks in Sedona.

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

A sharp bend in a dramatic river canyon cut through red rocks.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

Three columns of volcanic rock shoot out of the ocean.