An unassuming 13-acre park is home to over 12,000 roses.

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

The largest earthwork effigy in the world.

A display of magnificent stained glass windows is the first exhibit of its kind.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

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

A small cemetery chapel designed by Frank Lloyd Wright and built in 1906.

In the middle of Calvary Cemetery stands this singular memorial to a small boy who died too young.

The sign to a demolished amusement park now stands in front of a local library.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

This Mediterranean castle was built for a millionaire and his giant dog.

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

The clothes-washing king doubles as a community center with some unusual features, including an aviary filled with finches.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

Orthodox church partially financed by Tsar Nicolas II.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

Illegal drag racing two stories beneath Chicago’s streets.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

No one knows how many bodies are in this vault in a Chicago public park.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.