One of the oldest theaters in Australia, it's also said to be haunted by a performer who died on stage.

A friendly monster lurks outside the State Library Victoria.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

This giant, granite purse is one of Melbourne's most unique and distinctive pieces of public art.

Hidden among popular Sydney golf courses is a little remembered graveyard populated by smallpox victims.

This rare effigy of the author spent years lost in storage.

This historic observatory contains the world's oldest refracting lens telescope.

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.

Critics argue this boab tree has been mislabeled for the sake of dark tourism, undermining its spiritual significance.

A medieval tower with a suspended iron cage used as an open-air jail for criminals who were exposed as a warning.

The seat of the Mantua bishop holds many secrets within its walls.

In Lago Superiore, the largest expanse of lotus flowers outside of Asia is hard to miss.

The oldest church in Mantua was buried for centuries under the facades of other structures.

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

An extraordinary collection of 18th century anatomical waxworks.

The mummified relic of St. Catherine sits forever on a golden throne.

A diverse collection of wax, bone, papier-maché and mummified relics.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

Once known for its horse-powered knife sharpening, this 200-year-old shop offers an array of blades and hard-to-find culinary tools.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

The remains of an ancient Roman city are hidden underneath Bologna's beautiful public library.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.