This unusual statue overlooking the Royal Mile has an interesting backstory.

The building where Mary, Queen of Scots was said to have bathed in white wine.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

A pair of stones embedded in an Edinburgh street memorialize one of the city's last public hangings.

This alley off Edinburgh's Royal Mile contains remnants of the city's seedier history.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

The fountain marks the area where hundreds of accused witches were burned at the stake.

This "City of Books" holds a museum, library, and the complete personal book collections of five of Mexico's greatest thinkers.

After surviving abandonment, this powerful Latin American mural is alive again.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

Once a ferry dock, radio transmitter, and now a new Greenpoint park.

The graveyard holds the remains of Irish immigrants who arrived in Queens after fleeing the Great Famine.

These historic buildings once housed the headquarters of one of the most infamous gangs of New York.

This mysterious marker puzzles pedestrians and infuriates geographers.

The home of the first American-born saint is one of the only curved buildings in New York.

You don't have to be an ambassador to dine like one.

A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

Have a steam and some blini at this cafe in a century-old bathhouse.

The Underground Railroad passed right through this historic Brooklyn Heights church.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.