An early 20th-century bullring converted into a modern shopping center.

This colorful statue welcomes visitors to a Barcelona park.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

The Tudor-style cottage in the middle of the square is not quite what it seems.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

A mysterious carving from 17th-century London seemingly depicts a young boy sitting on a bread basket.

A quiet memorial to those who died saving others in the heart of the City of London.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

Public access to clean drinking water was an instant hit among the masses.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

An intriguing three-sided folly is a testament to one man's devotion to Catholicism and the number three.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

A little piece of Oxford's overlooked industrial heritage.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

J.R.R Tolkien, C.S. Lewis, and other "Inklings" met at the Oxford pub to discuss the now legendary fantasy stories they were writing.

This historic pub is a hidden gem for fans of Lewis Carroll.

Legend says this public grazing area hasn't been plowed for thousands of years.

These ancient ruins were the final resting place of King Henry II's mistress.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

Gods clash with machines in a power plant regenerated as a museum.