Moscow's imposing monument to the Space Age.

Immortal combat in a Moscow museum.

Stalin's march toward a more modern USSR flooded a monastery, leaving a unique and extravagant nautical marker, "The Flooded Belfry."

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

The first declared National Monument in the United States.

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

The world's largest Holstein cow.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

This 25-foot-tall statue was built as a protest to a property dispute.

The world's largest floating loon bobs in the lake to kick off an annual festival.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This landmark honoring a local beer brand is an iconic part of the Minneapolis skyline.

This abandoned prison castle has become an imposing gallery of graffiti art.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

A few times a day, you can see an animatronic cowboy shoot-out.

A haunting army of decomposing, moss-covered stuffed animals and dolls guard this swinging truss.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

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.

When waves crash onto this section of beach, the rocks sing a song.

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