The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

The world’s oldest baseball field had to fight to earn its record.

See prehistoric footprints, plus two complete mastodon skeletons.

Although outnumbered, the Tecumseh Confederacy defeated a large regiment of United States troops.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

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

One of the few working locomotive roundhouses in the United States.

The world’s largest Masonic temple was saved by the White Stripes.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

This home is steeped in history from, George Washington to George Corwin, High Sheriff during the Salem Witch Trials.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

Mysterious stone tower featured in many alternative histories of the New World.

Dedicated to the explorer who opened Japan to the West.

World's first "penitentiary," meant to be humane, drove men insane.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

The first American department store, and home to the largest operating musical instrument in the world.

A layered tribute to the work of mosaicist Isaiah Zagar.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

One of Philadelphia's largest murals resides hidden under this bridge.