A kaleidoscopic warehouse-maze of handmade neon signs.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

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

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

A more chill but no less fascinating version of the famous ancient archeological site.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This futuristic building is yet another architectural wonder in Dubai.

The world's largest frame offers spectacular views of the city's past and present.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

Whitewashed mosque contains the world's largest carpet.

This indoor ski resort has a mountain contained inside a mall.

A faithful reproduction of Al-Jazari's enormous water clock.

This artificial archipelago was supposed to resemble a map of the world.

One of the newest mosques in a city filled with thousands.

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.

A sculpture of graceful storks sits atop this fountain in Independence Square.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

Carefully reconstructed after the Bosnian War, this 16th-century bridge stands as a symbol of the country's enduring multicultural heritage.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

Once the foundation for a mansion, these ruins now offer amazing panoramic coastal views.

These roaring primates were considered a divine creature in the cosmology of the Maya.