This seaside Italian village doesn't just look Escher-esque, it actually inspired the mind-bending artist.

A set of outdoor stairs named in honor of a famous Austrian artist.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

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

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

Experience what life was like in Ireland during the Viking and medieval ages.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The oldest public library in Ireland.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

This pub built its reputation pouring post-shift pints for employees of the cemetery with which it shares a wall.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

One of Ireland's most infamous prisons for rebels including men, women and children.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

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

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.