Widely advertised as Amsterdam’s narrowest street, this passage was once a highlight of the Red Light District before its windows closed.

Amsterdam's former hotspot for public executions and dissections.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

A unique work of automotive art calls this shopping center home.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

The (fictional) address of Sweeney Todd's bloody barbershop.

Dictionary Johnson’s favorite feline.

The taxidermied remains of a once-great parrot.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

This once-private estate is now a dreamy, meditative garden that's open to the public.

A living antique aviation museum in the historic town of Red Hook, New York.

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

The mistake that launched the commercial broiler chicken industry is immortalized in the town where it took place.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Florence's historic adobe county courthouse was turned into a historic site that honors one of Arizona's most prominent political leaders.

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

This poignant art installation raises awareness of violence against women.

The mark of the Devil's horns on a marble column in Milan.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.