This monastery set over a holy cave contains the oldest known painting of Saint Francis of Assisi.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

This 135-year-old weather station studied the effects of the climate on human health.

Where the lovelorn find a home for their sentimental keepsakes.

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

Packed with geological formations, an ancient river, and taxidermied seals, this overlooked coastal cave system is worth a spelunk.

This bronze boy sits on one of Capri's rocky cliffs, waving at the passing boats.

A gorgeous example of 13th-century Gothic architecture.

Pilgrimage site for star-crossed lovers.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

These elaborate gothic monuments honor Verona's medieval lords.

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

The house where Harlequin was born.

A massive mausoleum towers over the gravestones in a 19th-century Italian "model village."

Six paintings reminding you that death is integral part of everyday life.

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

One of the world's oldest olive trees, thought to be over 2,000 years old.

An idyllic traditional timber village on a picturesque hill was built for a film.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

A 11-foot former president stands on a Kosovo street that also bears his name.

A futuristic, brutalist masterpiece that is also strangely prison-like.

This massive monument was unveiled the day Kosovo declared independence from Serbia.