Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

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

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

This bar named after the world's first mixed cocktail was home to one of New Orleans' most notorious politicians.

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

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

The second oldest continuously operating bar in Louisiana.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Berlin's old airport.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Hans Christian Andersen for the postmodern world.