Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A Yiddish theater turned movie house turned rock and roll landmark turned gay disco turned bank.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

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

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

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

The first piece of public art dedicated to LGBT rights.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

A small peaceful park and waterfall tucked amid the urban grind of Midtown Manhattan.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Unrepaired walls from a 1920 anarchist bomb attack.

Visit the monolithic tomb of America's most famous general.

Avoid gangster interaction while window-shopping.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

A bit of retro transportation flair preserved in the world's largest department store.

This semi-hidden Manhattan restaurant is based out of a loading dock.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.