This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

This towering wooden Sasquatch was carved with a chainsaw.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A 30-foot man on a penny-farthing bicycle rides along the banks of the Mississippi.

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

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

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

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

The largest earthwork effigy in the world.

A parade of antique steeds offers a quirky ride through history.

Thousands of American timepieces on display in the former clock-making capital of the country.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Hundreds of personalized inscribed planks make up this historic boardwalk.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

A war memorial that appears to ascend from its forested setting.