Raging waters have created a strange geological site that looks like something off of a progressive rock album cover.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

Go deep down into the earth to experience the world of Welsh coal miners.

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

One of the tallest buildings in Africa provides a great view of Johannesburg's unique geography.

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

This church is said to have connections to the Knights Templars.

A massive rock in the surf steeped in legends.

These otherworldly caverns form Earth's oldest known cave system.

Jurassic Park in South Africa.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The narrowest street in Paris.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The celebrated eyesore created by starry-eyed sweethearts.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

This bridge was constructed from the rubble of the infamous Bastille.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

This Parisian café sticks almost exclusively to an ethos of reuse.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.