Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

One of only two commuter aerial tramways in the United States.

Elevated freight railway turned wildly successful urban park.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Home to the only outdoor municipal elevator in the United States.

World's only nuclear reactor operated by liberal arts undergraduates.

This sandstone mansion was the home of two of Oregon's most important pioneers.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

10,000 flowered plants bloom in the City of Roses.

The longest burning light bulb in the world.

Its buzzing collection honors vibrator history.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Playable, historic pinball machines fill this Alameda museum.

A living archive of urban activism and space reclaimed.

This former crime corner has been turned into an eclectic community center.

The earliest pagoda built in the beautiful Panmen Scenic Area of Suzhou.

The family compound and final resting place for the philosopher, Confucius, and over 100,000 of his descendants.

An ancient fortification lives on in this Chinese city.

An enormous effigy of the goddess of compassion hides within the sanctuary.

The Chinese have long been excellent at the art of copying, but this epic replica takes the biscuit.

The world's tallest circular building is loaded with symbolism, but many just see a big donut.

The embalmed remains of the communist leader lie within a custom crystal coffin.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.