America's first National Historic Landmark is a 100-foot tall obelisk and gravesite dedicated to the only casualty of the Lewis & Clark Expedition.

One extremely determined man's homemade universe.

Five acres of divinely inspired folk art.

The world's largest Holstein cow.

Hidden in the grounds of the Fort Dodge Museum is a "real" and terrifying petrified giant.

Meet the "Green Monster" of Monico, Wisconsin.

This simple stone monument honors a 19th-century tragedy.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

Elaborate hand-carved wooden clocks two brothers made in their spare time are on display at this handsome little museum.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

Most comprehensive museum in America devoted to one ethnic group.

This colossal reptile celebrates the history of the now-defunct Canadian Turtle Derby.

The world's tallest turtle riding the world's largest snowmobile.

Small-town museum dedicated to outer space ... and bicycles.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Known as "The Hill of the Little Devils."

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

Icelandic settlement in Manitoba established in 1875.

This 'terrible lizard' was one of the world's first animatronic dinosaurs.

An impressive collection of farm equipment and other artifacts from life on the prairie.

This park straddling the United States-Canadian border has been a symbol of peace since 1932.

Homemade outdoor church and sculpture garden decorated with glass shards.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.