A colossal statue of a woman hugging a modern building.

A Jenga-style cylindrical tower of books that appears to go on forever.

A crucified and bearded female saint.

Microscopic scenes; some call it novelty, some call it art.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

This ruined castle perched atop a rocky peak is a great place for a hike.

Visitors flock to the historic birthplace of radiobalneology for its therapeutic radium treatments.

A mansion where wonders of Christmas are celebrated all year long.

A larger-than-life statue of the German revolutionist stands proud in a small town where he never lived.

Before serving as James Bond's Casino Royale, this Victorian-era spa catered to the world's elite.

A spiral staircase twists to the top of this unusual Czech lookout tower.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

This fountain was designed to honor the man who helped bring water to Barcelona.

An eclectic collection of thousands of items owned by the sculptor Frederic Marès.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

These 2000 year old remains of a Roman aqueduct are hidden inside a hotel lobby.

A centuries-old bar once frequented by Picasso, Hemingway, and Dalí.

A beautiful but toxic fountain of mercury.

This cemetery features modernist statues as strange as its name.

Sink your spoon into a luscious crema Catalana at this former urban dairy farm.

Turntable anonymously received orphans, alms, and groceries.