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

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

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

A modern day curiosity cabinet.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The view that inspired the scenes of Dracula's first landing in England.

WWII artifacts, including the building itself.

A modern English garden of eccentric beasts, follies, and oddities.

A century-old tradition has culminated in a small but singular collection of feline effigies.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

The tallest freestanding structure in the United Kingdom.

A stone obelisk towering over the surrounding countrysides beckons hikers across the rolling moors.