A crumbling mountain resort that looks like it was abandoned in an instant.

A colorful architectural gem in Seattle's uniquely modern Central Library.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

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

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

A historic freight system that found the true gold rush is in tourism.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

The only museum with its curator—and her pets—buried inside.

Go inside to really appreciate this 500-year-old technological masterpiece.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

This abandoned five-star hotel is now a five-star urban exploration destination.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A vinyl-lover's Shangri-La.

A museum dedicated to the history and exploration of both popular music and science fiction.

Strange physical sensations and optical contradictions keep visitors coming back for more.