This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Fountain where visitors can earn a license to be mad.

A family accused of witchcraft once called this medieval tower home.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

The oldest botanical garden in the world that technically isn't the oldest.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

The tomb of the mythological founder of Padua is not hidden in some obscure crypt, but stands right in the middle of the city square.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.

David Sedaris called it "The greatest shop in the world."

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.

This Italian foot path winds through the mountains via 52 individual tunnels.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

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.

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