These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Along a coast that sees the annual migration of humpback whales, a geological formation that takes the shape of a whale’s tail.

There is a small island in the Gulf of Nicoya where the only human inhabitants are dead.

Sloth rehabilitation center in the jungle of Costa Rica.

Perched atop the highest hill in Cartagena, this 17th-century convent offers spectacular views of the city.

A mouldering Colombian bull ring stands as a reminder of the country's complicated relationship with a brutal sport.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

An 18th-century battery complete with original kitchen and garrison.

An inspired museum dedicated to the patron saint of enslaved people, inside the cloisters where he lived and died.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

The walls and streets of the ancient city are peppered with penises.

Although controlled by the Santuario, the Campanile is a separate and later structure which offers great views of Pompei and Vesuvius

A painting, bought for one dollar and carried to the church on a manure cart, is said to have instigated miracles and has certainly inspired the construction of an impressive basilica

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

The oldest volcanology research center in the world.

This medieval city gate is now a blend of the past and the modern world.

This monumental fountain has moved around the city multiple times.

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

A Greek tomb discovered under a palace in Naples displays ornate funeral decorations.

The burial place of an obscure North African saint was turned into a macabre body preservation factory for the 17th-century Neapolitan elite.