This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

This hollow steel globe is the second-largest in the world.

One of the best places to see wild Colonial Spanish Mustangs in the United States.

This woodland architectural installation acts as a camera obscura for the heavens.

This multi-story wooden waterpark offers homemade thrills.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

To get to or from this Canadian ghost town, you'll need to cross 11 single-lane bridges.

Previously a hot spring, this park remains a site of unique history, wildlife, and geology.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The location where the iconic movie character declared it was time to go home.

A condensed piece of China floating in a Dutch harbor.

A set of seven houses, each built in a style that represents a European country.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

This bomb shelter-themed bar has barely changed since it opened.

9th century Abbasid mosque, damaged in modern warfare.

This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

The ruined doorway is a portal to the building's turbulent and torturous past.

An ancient octagonal weather station named for the eight Greek gods of wind.