The only castle in North America to ever house European sovereigns.

On a cornerstone of the City Museum is the head of a monstrous serpent stolen from an Aztec pyramid 400 years ago.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

A jewel of the Mexico city skyline now slowly crumbles after surviving an earthquake.

This bridge over the River Cuale leads to a neighborhood that was once an escape for Hollywood's elite.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

The remnants of the fortress that saved Georgia from the Spanish still stand guard on their swampy island.

A real (but thankfully not live) missile stands tall as a monument to the United States military in the small town of Cordele.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

The oddly shaped, steam-spewing building is now an art studio and gallery.

Every Sunday, Bogotá turns 75 miles of its city streets into a bicycle superhighway.

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

Colorful lights and mirror-like brine pools create trippy illusions within the historic mine.

This small city park is best known for the nightly convergence of thousands of shrieking parakeets.

In the middle of one of South America's most historic walled cities lies a bar with an enormous collection of Soviet memorabilia.

The colonial city's social history is reflected in its fanciful door knockers.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

This statue pays homage to a group of kids's childhood companion who once called the park home.

A park with one large cat sculpture and 15 smaller ones, all painted by different Colombian artists.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.