A 19th-century church in South Mumbai built to commemorate those who died in the First Anglo-Afghan War and the retreat from Kabul in 1842.

This 19th-century heritage building once housed a department store that supplied British provisions in the city.

The beautiful 16th-century stepwell lies in the shadow of a famous fortress.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The last resting place of the famous Native American princess is marked by a haunting monument.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

An architectural oddity hides in plain sight on this iconic London bridge.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

A gruesome and mysterious ancient sculpture of a pagan deity from the Roman occupation of Celtic Britain.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

This building has a giant piercing through one of its corners.

The mysterious “eyes of the Devil” dot a street in the occult center of Italy.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."