Holding the most bodies of any cemetery in the United States.

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

Cryptic messages embedded in the New York City sidewalk.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

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

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

A collection of fanzines, recordings, and documents detailing the rise and influence of the feminist punk movement.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

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

A natural gas leak provides a flickering flame beneath a waterfall.

Colorful murals stationed throughout Charlotte bring poetry to everyone.

This scented city oasis was a labor of love.

A man's home is his castle.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

Soaring over the Niagara Whirlpool since 1916.

A monument honoring those who died in the Great Famine of Ireland.

This former hub for crafty philosophers was founded by a writer who died aboard the infamous RMS Lusitania.

This vessel is believed to be the oldest operating fireboat in the world.

This restored house is like a time capsule of the president's unconventional inauguration.

This sprawling collection of saintly relics includes such fascinations as wood from the Cross of Jesus and threads from Mary's veil.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A forsaken wonder in the middle of the East Side neighborhood.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.