In Midtown Atlanta, tons of marble appears to be devouring a Fiat Panda at this unique art installation.

This "living building" on Georgia Tech's campus is home to a blueberry orchard, honeybees, and more than 900 solar panels.

The first singer to cut a country music record is buried in a small graveyard in Atlanta, Georgia.

Like Mars, but much closer.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

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

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

The oldest continuously operating fish market in the United States.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Elevated freight railway turned wildly successful urban park.

Decades before the scandal, this staircase on the river was a literal "water gate."

A painfully obvious spy house sits right across the street from the Russian Embassy.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

A lush indoor jungle fills this bustling Madrid transportation hub.