The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

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

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

A circle of giant painted vases in the former pottery capital of the United States.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

The palatial McDonald's that inspired Wesley Willis.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

Illegal drag racing two stories beneath Chicago’s streets.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

The Burnside Fountain and its questionable interpretation.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A monument celebrating the idea of reaching inaccessible places.

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

Belly up to the bar in Cowtown, don't forget to buy some boots.

A museum dedicated to the alleged Roswell Incident.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.