One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

World's largest Christmas store.

Located in a Civil War era building, this café is engrained with the spirit of Edgar Allen Poe.

Turnip-shaped island just off the Michigan shore in Lake Huron.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

All that remains of a gigantic earth-moving machine.

The crash of this great airship signaled the beginning of the end for dirigibles.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

The last street in Pittsburgh that's paved with wood.

This icon of the Atomic Age now lays dormant.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

One of the largest collections of holy relics in the country.

The final resting place of the most famous sharpshooter.

A sharply wedged sundial marks the point at which each day in the United States begins.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

The world's brightest bioluminescent bay.

This museum preserves the heyday of Puerto Rican coffee.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

This rock in the middle of a river in Jayuya contains dozens of Pre-Columbian Taíno petroglyphs.

This "sausage route" features gorgeous views and family-owned restaurants.

The world's second largest single-dish radio telescope, once used to contact E.T.