Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

This taxidermy horse was a Civil War hero.

Perhaps the most scandalous statue of America's first president.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Roses and other fascinating flora fill this garden built to commemorate Britain's immortal Bard.

Rare recess caves fill this unbelievably beautiful Ohio park.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.