An honorary saint of the people, Maria Adelaide became an incorrupt corpse, the clothes intact, exhaling “a strong scent of roses.”

A hidden three-foot-wide house separates these two regal churches.

Elaborate tile work in this railway station tells the story of Portugal.

An ancient tomb that still stands in Portugal.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

Building owners can take out tiles for free at this repository for historic building materials.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This snug medieval lane is one of the narrowest streets in the world.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

The attic of a four-century-old canal house hides a clandestine church.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

The history and future of cannabis.

This basement museum explores the art and artistry of fascism.

Cat art as far as the eye can see.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

A beautifully eclectic mix of architectural styles.