A surviving concrete arrow from a 1920s navigational network is preserved right off a modern freeway.

An enormous natural sandstone bridge in Kentucky.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

A 30-foot-tall goat tower in central Illinois is home to a herd of Swiss ungulates.

A small rural town hides Indiana's tallest waterfall.

A giant wooden statue of one of the greatest pitchers in 19th-century baseball.

One of Indiana's only natural sandstone arches is nestled between resort ruins and an old Boy Scouts camp.

The multinational Burger King chain is banned from operating within 20 miles of a family restaurant filed under the same name.

The largest ski jump in the Western Hemisphere hasn't hosted skiers in decades.

For decades, it has disappeared and reappeared as water levels rise and fall.

This dramatic rail curve was once the target of a failed Nazi attack.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.

This 19th century granite fortification is one of the most well preserved forts in New England.

A roadside park in eastern Maine first marked the halfway point between the equator and North Pole with a brass pin in 1896.

An elderly widow still operates the incredibly detailed model railroad she and her husband built by hand.

This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

Walk the same tracks that once ferried Gilded Age aristocrats to their vacation destinations.

Steam engines and conveyor belts are remnants of a genius system left in the middle of the Maine woods.

The crumbling remains of a 19th century fortess.

This city block-long devotional site, a replica of a famous site in France, is dedicated to the patron saint of grandmothers, mothers, and educators.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

The world-record holder for the longest bridge stretching continuously over water.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.