This Arabesque Italian castle was built with a primitive, if ingenious, air-conditioning system.

Thousands of well-dressed mummies below a monastery.

Cemetery featuring rare glass-fronted columbarium.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

A Museum of Holography frozen in 1974.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

The first artificial white water river course in North America cuts right through an Indiana city.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

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

This historic hotel invented the chocolate brownie.

Wisconsin's most celebrated export gets the royal treatment on I-94.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

A place to eat for on-the-run agents and espionage enthusiasts.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

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

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