What appears to be an ancient Roman temple is actually a Catholic church.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

An iconic red telephone box turned tiny art gallery.

Erected in memory of Sir Arthur Conan Doyle, who was born close to this spot, this statue commemorates the author and his famous detective.

A French library that makes sure its love of books is writ large... giant in fact.

A sculpture serving as an homage to Pope John Paul II.

Ancient ruins hidden underneath a modern luxury hotel.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

A medieval fresco which reminds visitors that death will come for us all.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

Home to fantastic views and ancient graves.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.