A mushroom-shaped outcropping that has come to be the symbol for an entire town.

A tree that defies gravity grows in an ancient ruin.

Italy's "New Mountain" rose from the ground in a volcanic eruption in 1538.

The glowing blue Nymphaeum of Emperor Tiberius.

The Emperor Tiberius' palace of debauchery.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

A beautifully well-preserved ancient Roman villa.

Ancient snack bar of the Roman Empire re-opened.

A dead saint, a deadly poison, and a mysterious holy ooze.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

Virgil's many-mouthed gateway to the underworld.

Southern Italy's spinning top village.

A sulfuric hellscape in southern Italy.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

The oldest volcanology research center in the world.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

A submerged archeological park still holds the wonders of a Roman Sodom.

Legends say that this small island was the final resting place of the Welsh saint of lovers.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."