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

The most confusing clock in New York.

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

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

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

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

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

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

Sniff the Titan Arum's rotting flesh.

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

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

A semi-scholarly approach to sex.

Elevated freight railway turned wildly successful urban park.

This 19th century hydroelectric powerhouse was the first of its kind.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

This elaborate towering structure was once famed for its revolutionary height.

Dr Barnes' $25 billion private collection of art and arboretum.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

Home to a vast and influential collection of Shakespeareana.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

A super-sized promotional trick that is now a D.C. landmark.