A council house in England where ghostly activity was reported in the 1970s.

In this recreational park, two artificial lakes share a surprising connection to Wembley Stadium.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

This secluded walkway overlooks a magnificently wild London green space.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

This studio was home to David Bowie's first single, even if it did turn away the Beatles.

High-end antique collection housed in a centuries-old church.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

The relics of dozens of martyrs are stored in a single chapel.

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

Does this church in Naples hold the true tomb of Vlad the Impaler, the notoriously cruel figure who inspired Bram Stoker's Dracula?

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

An eerie, little-known Neapolitan museum filled with preserved human remains.

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

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

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

These bronze horses on the gates of the Royal Palace of Naples were a gift from a Russian tsar.

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.

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

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

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.