The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The curios of pharmacist and collector Henry Wellcome.

This South London cemetery holds the remains of more than 15,000 people.

The ancient tomb acts as a calendar that keeps perfect time.

The oldest stone house in Paris was built by its most famous alchemist.

Weird wax anatomical models reside here, as do other anatomical specimens.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A giant Troll lurks under one of Seattle's oldest bridges.

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

France's most famous cemetery, with some of its most curious tombs.

Northern Ireland's Brobdingnagian stepping stones.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Notorious artist squat renovated into legal studios.

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

Medicinal spa created with the discharge from a geothermal energy plant.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

The television series' iconic giant foot was borrowed from this classical painting.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

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