A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

A Manhattan Episcopal church with an eerie underground crypt.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A touching tribute to the "Queen of Soul."

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

Outside of one of Britain's most renowned social clubs, a step installed specifically for the Duke.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

An easy-to-miss plaque marks the building that first held this 19th-century telephone innovation.

The former location of a platform that allowed passengers to safely wait for the trolley.

Built in the 1920s, this co-op in the Bronx feels more like an Italian villa than a typical New York apartment building.

The mounds at this site were reconstructed with the help of archaeologists and historians.

An unassuming secret door once led to a legendary watering hole.

The longest step street in the city.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The "Seinfeld" diner.

Where royalty waits in the height of luxury.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

Once a train station along the Great Eastern Railway this vibrant coffee shop and bar is where members of London’s creative class mingle.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.