Abandoned for 60 years, this submerged bridge was completely forgotten until the lake was drained.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

The “American Gothic" artist's largest works hang in an Iowa State University library.

An obelisk commemorating Lincoln's role in connecting the coasts.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

A giant time capsule not scheduled to be cored until 2040.