A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The oldest stone house in Paris was built by its most famous alchemist.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

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.

Some of the best Persian food in New York comes from the front window of an unassuming pizza shop.

Three-story slide through the New Museum.

On the top floor of an upscale department store stands a lavish restaurant housed in a replica of a luxury French dining car.

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

The place where Dvořák composed some of his most famous works.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

An exhibition space dedicated to American outsider art created between the 18th and 21st centuries.

A prized globe signed by Amelia Earhart and Charles Lindbergh sits in the Brooklyn office of the American Geographical Society.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

Collect holy water from a Bronx grotto.

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

There are owls with glowing eyes in Herald Square.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

Historical figures from New York City's Catholic community reside in Midtown.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

Feral cats keeping the rodent population at bay all across Greenpoint waterfront.