According to Greek mythology, this natural spring is the home of a freshwater nymph.

A monk spent 14 years carving steps through tuff to make this religious site more accessible to pilgrims.

This crystal clear water basin feeds the Lao river and powers a hydroelectric power plant.

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

A great white whale sculpture now sits in the location where the remains of a prehistoric cetacean were found.

A founding document of the European Union was written on an island where Roman emperors once banished women.

Since the 1960s, this small village has invited painters to decorate its walls.

A limestone grotto where daylight filters in from below and turns the water a beautiful turquoise. Also home to a small underwater nativity scene.

This crescent-shaped beach is said to glow under the light of a full moon.

The second-highest village in Lazio has attracted artists for 400 years and is now a spectacular open-air art gallery.

Contrary to what its name suggests, you won't find any bunnies here.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

These artificial caves crafted by ancient Romans were elaborate fish farms for moray eels.

At an estimated 3,800 years old, this olive tree is one of the oldest on earth.

A medieval Italian village is fighting depopulation with this vibrant annual street art festival.

This Roman underground canal was the longest tunnel ever built until the late 19th-century.

This small but lovely sinkhole lake is the last remnant of a great prehistoric water basin.

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

For decades, vendors have sold clothes once worn by American soldiers who stormed Italy in the 1940s.

A series of caves, tunnels, and wells filled with fascinating figures and symbols.

Featuring the last fully walkable parapet walkway in Europe.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

This serene, turquoise lake in an extraordinary nature reserve showcases a rare natural phenomenon.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.