New York's unstoppable progress turned this cemetery into the smallest burial ground in the city.

This striking arch, one of the first architectural elements constructed in Prospect Park, was recently restored to its original glory.

For almost a century, this East Village newsstand has served egg creams to beats, hippies, punks, and everything in between.

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

A trompe-l'oeil statue honoring the first guide dog in North America.

The childhood home of one of America's greatest unsung troubadours still stands in a much changed Brooklyn neighborhood.

Sniff the Titan Arum's rotting flesh.

NYC's legendary underground network for bovine transportation.

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

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

Every dish is blessed in this basement eatery beneath a Hare Krishna temple.

Plot your trip through the city on the sidewalk.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

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

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

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

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

Salute the leader of the proletariat.

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

This poor little statue is the most vandalized memorial in Washington.

A rotating cast of guys and dolls in front of a Washington, D.C. building.