Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

A modern mechanical planetary system, part of a 10,000 year clock.

A psychedelic labyrinth on the San Francisco bay.

Guns that have been defending San Francisco since 1904.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Elevated freight railway turned wildly successful urban park.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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

The 28-foot granite map plots the locations of 40 theaters in New York City.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

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

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

New York City's smallest piece of private property.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

The first piece of public art dedicated to LGBT rights.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

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

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.