The cliff and rock formations are made out of Sioux Quartzite.

A winged-helmed, sword-brandishing tribute to German Americans.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

A futuristic climate change study is nestled deep within this public land.

A mapping error in the 19th century made loggers think this section of the forest was underwater.

The largest Walleye statue in the world calls this Minnesota town home.

America's silhouette includes 100 square miles of wilderness jutting into Canada thanks to an old mapmaking error.

Journey through the largest remaining peat bogs in the contiguous United States to see the wilderness as it once was.

A memorial to a larger-than-life legend, inside a county that also holds Bunyan's death certificate.

A wonderland of caves in eastern Iowa.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

Fuel your honky-tonking with this venue's unbeatable “Recession Special.”

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

The remains of the oldest bone-headed dinosaur in North America.

This urban oasis is a marvelous meld of music and landscape architecture.

The oldest landmark of Toronto is a testament to shifting sands.

The giant birds honor two native North American species.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

A swirling spectrum of stained glass dazzles visitors who enter this subway station.

A swaggering, monumental souvenir of the most extravagant party Montreal’s ever thrown.

The only example of a Paris Métro sign in use at a subway station outside of the French capital.