A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A haunting collection of the vanished and disappearing natural world.

A museum of carnival attractions where you are invited to ride the rides.

In the 1930s, a mysterious murder shook this Northamptonshire village–the identity of the victim remains a mystery to this day.

This whimsical garden filled with fairies and incredible creatures has been enchanting children—and adults—since the 1970s.

This Khmer-era temple includes a lintel that was stolen and displayed at the Art Institute of Chicago for years before returning to Thailand.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

The longest manmade tunnel in Queensland is now a beautiful trail, home to a special colony of bent-wing bats.

This mountain trail inspired Nietzsche to complete his magnum opus.

A trail weaves through the verses of a poem illustrated by stone sculptures inspired by Native American pictographs.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

Canada's subterranean Cold War museum has doubled as a movie set.

This museum sits on the site of a decommissioned military communications base.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

This medieval manor house was equipped with secret compartments for hiding priests.

A retirement home for soldiers that can trace its history to the Elizabethan era and beyond.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Cozy basement bar sports an inventory of over 2,000 beers.