A Nevada mining boomtown that ran out of silver and luck.

Italian cave with exceptional acoustics and an unsavory history.

Geological storytelling.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.

The remains of a British railway rusting in the jungle mist of a Brazilian mountainside.

The people murdered during a 17th-century Norwegian witch hunt have been honored with a pair of stark, modern installations.

Menacing or in memoriam, the Silent People and their meaning are left to interpretation.

World's strongest whirlpool.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

A cherry tree growing atop a mulberry tree.

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

This church, better known for its weeping portrait of the Virgin Mary, also houses the world's oldest existing piece of taxidermy.

This 18th-century dissection theater's frescoes display a gorgeous tension between the terrestrial and esoteric.

What better way to honor a pioneering anatomist than by preserving his severed head like a specimen?

A collection of collections, including an anatomy museum, the “Cabinet of Physics of Alessandro Volta, a museum of natural history, mineral collection, and much much more...

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

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

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

An exclusive waiting room built for the royal family in the 1920s is hidden in Milan’s central station.

Remnants of cone-shaped fascist bomb shelters in Milan.

Vast network of air raid tunnels beneath Lombardy's capital.