Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

Half of a waterfall goes into the river while the other half seems to disappear.

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

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

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.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

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

The palatial McDonald's that inspired Wesley Willis.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

No Gordon Lightfoot song, only a barebones monument to greed.

An ever-evolving wall of graffiti art off East Liberty Street.

In Florence's great Duomo, a 26 foot fresco honors a mercenary famous for attacking Florence.

Five candy-colored villages on the Italian Riviera.

The city is full of whimsical portals to another world.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Glass and concrete building designed by Albert Kahn.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

This public baseball field is a beloved remainder from of one of the most historic stadiums in the country.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.