Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

Remains of the walls of the Roman city named for its founder

This amazing cathedral was built on the site of the first Marian shrine in Spain and is important to Spanish speakers the world over

Hundreds of preserved dinosaur footprints can be found along a hiking trail in this small village.

Long tunnels run under the ancient chariot racing circuit to the tower.

This Roman arena once played host to bloody gladiatorial battles.

Touching the iron railings of Tarragona's balcony to the Mediterranean is said to bring good luck.

Designed by Gustave Eiffel before his famed tower.

A giant Troll lurks under one of Seattle's oldest bridges.

A remarkable collection of the machines which this industrial city was dependent upon for both commerce and domestic life.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

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

Historic funicular railway, believed to be the shortest railroad in the world.

This Georgian architectural masterpiece is the only cloth hall left in Britain.

This quaint funicular has been ferrying people up and down an English valley since the Victorian era.

A road that ends in the middle of a farmer’s field is one of the only remnants of this once-famous racetrack.

Underneath the well-known Lindenhof hides a secret cellar documenting Zurich's early history.

A 30-foot-high stream of chocolate flows continuously at the Lindt Home of Chocolate.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Visit Europe's largest subterranean waterfall, carved by water from the glaciers of the towering peaks surrounding the valley.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.