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

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

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The modern birthplace of Irish freedom.

The celebrated eyesore created by starry-eyed sweethearts.

Ancient serpentine sacrifice holder that has stood the test of time.

A marvel of Byzantine engineering under the streets of Istanbul.

The Guardian of Tallinn.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

This hospital helped pave the way for treatment that drove down child-mortality rates in 19th and 20th centuries.

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

Museum celebrating the history of computers, especially their role in codebreaking.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The most loyal of little dogs, or a Victorian era publicity stunt?

Recently restored menagerie of Victorian-era beasts.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

The fairy tale castle of the "fairy-tale king."

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.