Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

A beautiful but toxic fountain of mercury.

This cemetery features modernist statues as strange as its name.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

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

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

This living legend of maritime history is enjoying a second life.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

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

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

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

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

A historic cemetery doubles as a museum containing hundreds of unique tombs sculpted by a single artist.

This subterranean passage reveals the city's mining history as well as its legendary terrors.

A series of sculptures depict the actors who starred in the many cowboy movies shot in this Mexican city.

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.

Tucked along a river are enigmatic stone carvings created thousands of years ago.

A wooden sculpture sits rather out of place in this Mexican beach town.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

A wild Hollywood resort thwarted by mosquitoes.

Legend says this tiny ancient island is the lost ancestral homeland of the Aztecs.