This massive tea kettle was once a promotional stunt for the Oriental Teashop.

These whimsical works of art tell the story of the city's past and present.

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

Two thousand artifacts from around the world collected by one woman who loved to travel.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A Wisconsin kitsch palace from the 1930s lives its second life in 21st-century Brooklyn.

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

One of only two remaining Victorian-era greenhouses in New York.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

An artist's cute bronze subway sculptures belie his violent artistic past.

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.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

The "Seinfeld" diner.

Elevated freight railway turned wildly successful urban park.

A terrific purveyor of natural history objects and curios.

A mysterious "wedding cake" castle in the middle of the urban desert.

An urban laboratory.