Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

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

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Spain's largest bullring offers a unique glimpse at architecture and history.

An eerie collection of the surviving structures from a past celebration of the future.

A giant gleaming memorial named for a coal miner who gave his life to the pits.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

The house in the middle of the motorway.

The second-longest pier in the U.K. stretches a whole kilometer into the Irish Sea.

A statue honoring Frank Sidebottom, a beloved cartoon figure from Timperley.

This charming railway is one of the oldest and steepest funiculars in England.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

A miniature village mimics the surrounding buildings so well it includes itself.

Puzzles within puzzles hide a golden treasure in this hedge maze.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

A long-overdue monument to the forgotten British men drafted into the coal mines during World War II.

In an arboretum with hundreds of memorials to the fallen, this one might be the most poignant.

The star-studded street honors the city's most notable Brummies.

This historic abandoned train station looks like a stop for ghost trains.

This eye-catching roundabout sculpture commemorates one of England's best World War II-era "shadow factories."

A 1,215-foot tunnel transports pedestrians beneath the River Thames.