Semi-precious Blue John stones have been mined in this cavern system for centuries.

These quintessentially English stepping stones were built for Victorian tourists.

The last working windmill in the U.K. that has eight sails.

A remarkable medieval structure born from a 14th-century disaster.

Unusual British home built to disguise a water tower.

Several Iron Age artifacts were discovered during excavations of this ancient site.

This Victorian water wheel is affectionately nicknamed "Little Isabella."

An 800-year-old island castle in Guernsey's main harbor.

One of the best-preserved examples of an old town lock-up in the country.

A cottage built at the birthplace of Alexander Selkirk, a sailor who inspired the novel 'Robinson Crusoe.'

A house of bones — but nobody is quite sure to whom they belong.

This bronze statue was dedicated to a 1966 Beatles hit.

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

This cathedral's stained-glass patchwork of psychedelic colors and shapes was put in place long before the swinging 60s.

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

A statue of a pioneering Black footballer outside his former home stadium.

London's Victorian Tower of Babel.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

The remains of a small medieval chapel mark the legendary birthplace of the patron saint of Wales.

A 19th-century British industrialist built this Louis XIII–inspired chateau for his homesick French wife.

The train that took the prime minister on his final journey now rests in a British museum.

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.