A smoke stack so large, the Washington Monument could fit inside!

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

Touch an actual dinosaur bone at this eclectic trove of Rocky Mountain treasures.

New fungal and bacterial species call this deadly lake home.

Spectacular views await visitors to this lake.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The world's largest Holstein cow.

A true roadside icon standing on the same plains that the herds once roamed.

Three legendary, living albino buffalo roaming their pastures for all to see.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

The watery grave of an impractical idea.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

Elvis's own personal tropical hideaway.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

This zombie-themed restaurant stands out in the heart of corn country.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.