Spend your honeymoon where the Devil had his wedding.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

"There's nothing there," and other lies the KGB told us.

Local legend says the remains of Father Christmas lie within the medieval grounds.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

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

A collection dedicated to the treatment of disease, held in London's oldest hospital.

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

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

The remains of Crystal Palace Great Exhibition of 1851.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A cluttered and astounding collection of antiquities and curiosities.

The final resting place to 300 Victorian-era pets hides inside the city park.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

London's smallest police station is barely the size of a phone booth.

A mysterious artist-run cabinet of curiosities and library.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The anatomical-pathological collection of a man who changed surgery.

Remnants of a Victorian garden feature sitting in public woodland.