This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

The second oldest continuously operating bar in Louisiana.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

The only rotating bar in New Orleans has been slowly spinning since 1949.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

The oldest public library in Ireland.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A pair of gigantic baby heads greet passengers at Atocha Station.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This lucky bronze frog was gifted to Madrid by a casino.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.