The only arched bridge made of stone on the entire Mississippi River.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

Funhouse of found art and participatory sculpture.

This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

A tribute to Charles M. Schulz, who created the iconic cartoon that features Charlie Brown, Snoopy, and more.

The first home and studio that belonged to the famous architect.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

An antiquated German apothecary on Chicago's North Side.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

In a city crazy for seashells this museum educates and amazes visitors using the wonder of cast-off exoskeletons.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

One car at a time please.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.