This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

2300-year-old Roman road connecting the empire.

Jesus' footprints and the first catacombs in the world.

This ancient market is often referred to as the oldest shopping mall in the world.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

A Nesting Doll of Churches.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An alchemist's “magic door” stands in the middle of a Roman park.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

Thousands of abandoned statues of deities are taken to this hillside in southern Hong Kong.

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

Taoism, Buddhist and Confucianism are all represented in this temple that claims to answer anyone's wishes.

A pair of trees near a Hong Kong shrine are said to grant wishes, but only the ones they hold on to.

A station built to repel pirates now attracts wealthy vacationers.

Two cannon-like cranes were installed on top of the bank building to fend off bad feng shui.

A serene space tucked amid the skyscrapers of Hong Kong's bustling financial district.

Climb to the top of the world's largest seated bronze Buddha.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.