Winter weather reveals a large Italian marble crucifix drowned beneath Lake Michigan.

During WWII the U.S. Navy conducted primitive drone strikes on this Lake Michigan lighthouse.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

This shallow cave got its name from copious amount of human bones found inside.

One man’s vision of living among dinosaurs credits Jesus Christ as the engine of biological evolution.

The writing studio of an American adventure author, built in the style of a medieval castle.

A Beaux-Arts triumph set to become Ford's innovation campus

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This freshwater spring fills with 10,000 gallons of water per minute.

Abandoned concert venue legendary for its rock counterculture.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

Two creeks flow out of either end of this canyon in opposite directions.

This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.