A bizarre house filled with an astounding array of collections.

There aren't too many operational funiculars around, but Pittsburgh has two!

Elvis's own personal tropical hideaway.

Home to drunken tower-climbing goats... seriously.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

America's second-oldest brick baseball stadium was home to a legendary WWII series that only sailors got to see.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

At 207 feet, one of the world's longest continuous escalators.

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

Giant granite rocks standing end-to-end like a train of circus elephants.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Erosion and time have created a naturally-formed water park.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

European castle ruins in an American state park are actually the product of death and grief.

"The Most Boring Road in the State."

There's more contention than one might expect from cherry pie pans.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

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

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.