A headstone tells the sad story of a lost little boy and his pet dog.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

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

An avant garde art museum at the University of Chicago.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites.

Legend says train robbers stashed their gold within the depths of this unusual cave.

A Tucson museum and performance space full of found-object movable sculptures.

A cabinet of curious mathematical models and old calculators.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

An amazing collection of model trains, collectibles, and artifacts that span the last 100 years.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.

An urban laboratory.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

The unusual burial monument of Arizona's first governor.

A geological mystery on Camelback Mountain.

This unique competition celebrates an American Indian and Canadian First Nation cultural tradition.

The first permanent memorial to a unique secret weapon of World War II.

This tucked-away cemetery is the final resting place of a prospector who uncovered one of the largest gold mines in Arizona.