The pretty iron lamp is a reminder of the architecture underneath London's streets.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Eyam took steps to quarantine themselves and keep the plague from spreading.

Shop for books in the New Orleans house where William Faulkner once lived.

The first integrated firehouse in Atlanta houses a museum on the history of desegregation in the city's fire department.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Where condemned pirates met their grisly end at the gallows on the River Thames.

The woman who helped save 15th-century France was born in this humble home.

An unpaid bill, a stolen stone, and a famous fashion designer rest peacefully alongside a heroine of Highlands history.

What is it about mushrooms that makes people wish they lived inside of them?

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

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

A 16th-century Andalusian palace.

An ancient monastery, a locked room, and a mysterious book heist.

Paris' linguistic guide to the international language of, yes, love.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

A stately castle in the northern Italian countryside has been restored after years of neglect.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

When the rain falls, this drain system turns into a musical instrument.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.