These gardens recreate unique and endangered Michigan habitats.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Detroit’s downtown castle is one of the oldest structures in the city.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

An ever-evolving wall of graffiti art off East Liberty Street.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

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

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

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

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

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

The "lovely red Vega" of the legendary record-settling pilot.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

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

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

There’s a hidden military meme engraved on the World War II Memorial.

Home to items never before seen by the public.