This ancient Roman arch misled treasure hunters for centuries.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

One of only two commuter aerial tramways in the United States.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

In Egypt's expanding metro area, many of the neighbors are dead.

This hidden green space is the city's second largest conservatory.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

The last four extravagant street signs of London's historic banking street.

The quiet canyon has a tumultuous history involving a doomsday cult.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

An overlooked memorial honoring the local Washington residents who died in World War I.

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

Perhaps the most scandalous statue of America's first president.

A French artist's vague warning hangs over Belleville.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.