Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

"X" marks the spot of an echo chamber in the middle of a plaza.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

This charming English house was once the home of England's most famous poet.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

The platform atop this verdant volcano was built with the help of a royal elephant.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

New Zealand's epic shrine to all things puzzling.

One of the world's steepest streets seems to have houses sliding down it.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This strange geological landscape erupts with sudden bursts of water.

The glacier tucked within a New Zealand rainforest.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Largest monument in Colombia depicts 14 lancers who drove back an army.

A museum built around a bus-sized fossil on the side of the highway.

Storied crypts fill the most famous cemetery in Colombia.

A little known Colombian theme park of giant curiosities.

Cathedral carved out of salt, located a mile below the earth's surface.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

Few other hotels can rival the grandeur of the Castle in the Rockies.