The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

This ancient amphitheater was restored in the early 1990s.

This interactive museum highlights the history and philosophy of one of the world's most difficult sailing races.

One of the most important Celtic-Roman archaeological sites in Spain.

A legend says that if this elaborately decorated glass breaks, the good fortune of its owner's household will also disappear.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

The medieval woodcut-style artwork chronicles life in medieval London.

The pockmarks across the building's facade are remnants of the Blitz.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The last four extravagant street signs of London's historic banking street.

Ship-sized kinetic sculptural fantasy.

Scattered throughout London are ancient remnants of the city's former bounding wall.

The closed and crumbling Francoist luxury resort for workers is still full of life—for now.

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

Medieval ruins nestled within a breathtaking swath of Spanish nature.

This abandoned viewing platform has become a monument to unnecessary government spending.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

This postmodern apartment block was designed to be a vertical neighborhood.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

This bewitching Babylonian goddess haunts a hallway of the British Museum.