In the days before house numbers, these colorful signs held clues about various buildings' purposes.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

The site of the climactic scene from the classic horror film is now a historic landmark.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Dr Barnes' $25 billion private collection of art and arboretum.

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

The granddaddy of English geoglyphs dates back to the late Bronze Age.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

How did a French journalist’s grave become the sexiest statue in the cemetery?

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

The mummified relic of St. Antoninus.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Chicago’s incendiary role in the labor movement.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

More than 8,000 drinking jugs say “Cheers!” to a guy named Toby.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This sprawling mini-golf empire is an impressive testament to a disappearing attraction.