Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

These fantastically named natural pools look like something out of a Scottish myth.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

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

This ancient monument has been dissembled and put back together at least twice.

This 19th-century Turkish bath house survived the Blitz of London and is now an events venue.

One of only three examples of a stained glass window manufactured by the Tiffany Company in Scotland.

The true beauty of this church is showcased in the hand-painted stencils across the ceiling.

This small, round building is the entrance to a bomb shelter built in anticipation of World War II.

From fortification to folly, this hilltop structure has undergone many changes in the last 800 years.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

Named for its similarity to the tip of a violin's bow, this striking formation was created by millions of years of erosion.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

On this small spit of land, the person who runs the public house is considered the King of Piel Island.

The ruins of a 17th-century lodge on a grand estate are being slowly restored to their former glory.