Mountain where Jesus was first tempted by the Devil.

This cemetery features modernist statues as strange as its name.

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.

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

A beautiful but toxic fountain of mercury.

This semi-secret storybook hedge maze is also the oldest garden in the city.

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

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

A strange house built only at night, with rumored mystic inspiration.

The first park built over a freeway is a brutalist masterwork.

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

A walk through the historic city center, under the streets of Seattle.

A man-made island in scenic San Francisco Bay.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

A heavenly experience, right here on Terra Firma.

Antiques shop filled with all manner of curious collectibles.

This Elizabethan hedge maze is one of only six in North America.

This Art Deco masterpiece has stood in for some of the most famous buildings in comic book history.