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

Two giant painted cooling towers make for one of the world’s most epic bungee jumps.

A growing popular hipster market with over 100 local specialties and live music.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A museum dedicated to the history and exploration of both popular music and science fiction.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The most visited, and possibly most controversial, museum in Germany.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

Europe's second largest ossuary wasn't discovered until 2001.

Venice's "Island of the Mad."

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The celebrated eyesore created by starry-eyed sweethearts.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Famously misunderstood wonder of the ancient world

A battle between nature and architecture in the Cambodian jungle.

A 16th-century horror show built in a lovely Italian garden.

Dramatic river bend surrounds a natural red-rocked pedestal.

Macabre astrological automaton clock dating to the late 1400s.

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