There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

A book bound in the skin of an infamous criminal, along with countless other specimens.

The fountain marks the area where hundreds of accused witches were burned at the stake.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

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

The celebrated eyesore created by starry-eyed sweethearts.

A mechanized clock where a man fights off a dragon, crab, and rooster.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

This sacred cave temple is home to thousands of bats and according to legend, a giant snake king.

This Balinese sea temple is thought to be guarded by the hundreds of monkeys that live around it.

One native village in Bali lays their dead at the foot of a holy tree whose natural fragrance seems to hide the stench as the bodies decompose.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Take a hidden path to the mouth of the cave to watch millions of bats swarm at sunset.

Khmer Rouge's high security prison.

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

Built by King Norodom to honor his late father.

This impressive clifftop temple was once at the center of an international custody dispute.

An abandoned Cambodian resort that mirrored the downfall of the country as it was happening.

A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.