Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

An unsettling painting of three faceless sisters that is surrounded by history and legend.

This Italian dam is covered in salt-hungry goats who manage to scale its almost vertical face.

This building has a giant piercing through one of its corners.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

A mysterious stele of unknown origin sits on the peak of this curious mountain.

An abandoned bell tower in the middle of nowhere is the last testimony of a forgotten medieval village.

The Cathedral of St. Ambrose has been hiding a special parishioner within its walls.

A cherry tree growing atop a mulberry tree.

This Italian pyramid is said to hold the mingled remains of the dead from both sides of the Battle of Novara.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

Notorious artist squat renovated into legal studios.

France's most famous cemetery, with some of its most curious tombs.

Exquisite examples prehistoric bas-relief carvings.

This anatomical sculpture raises awareness about violence against women and promotes gender equality.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

The sunken structure looks like the victim of a catastrophic flood.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

The ruins of a medieval castle linked to the murderous French lord that inspired the famous legend of Bluebeard.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

This crack in France's seaside cliffs once hid a sinister secret.

For those late-night mollusk cravings.