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

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

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

The second oldest continuously operating bar in Louisiana.

Walk 2,300 feet above the ground on the "Troll's Tongue."

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

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

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

The longest hedge maze in the world.

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Odd outsider art installations surround a Gold Rush-era ghost town.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Monasteries on rock pillars, once accessible only by frayed ropes.

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

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The final resting place of New Orleans' most famous voodoo priestess.