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

An acoustic anomaly with a mysterious cause.

Nature's biggest mammal swims in landlocked Oklahoma.

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

Huge abstract sculptures of the Puerto Rican Flag.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

This cemetery is all that remains of a school for "wayward" girls.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.