The oldest colonial fortress in the Americas was once the home and later prison of Christopher Columbus.

Built in 1512, the oldest cathedral in the Americas.

A remarkable range of flora and fauna are represented in this Dominican nature preserve.

The first hospital in the New World.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

A museum dedicated to "science, history and the arts" little changed since 1915.

Beautiful hillside Vermont cemetery with amazing funerary art.

A Civil War Museum with some notable medical antiques.

Learn all about this iconic air rifle without putting an eye out.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This interpretive path lets you get up close and personal with dinosaur bones.

A statue honoring 44 continuous years of greeting passing ships.

This unusual lava tube spouts seawater during high surf.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

The drama of nature in full effect in this Nevada State Park.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

The first declared National Monument in the United States.

A bizarre house filled with an astounding array of collections.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

Once one of the largest producers of pig iron in the world.