One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This overgrown Illinois water park offers a whole new type of adventure.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

A palatial art deco restroom.

Sleepy Minneapolis block beats Guinness Record for most churches on one city block.

A treehouse assailed by the elements and the government, now gone.

The United States's largest hand-dug well is topped with a state-of-the-art museum.