The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

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

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

This cave holds a surprisingly colorful variety of geological oddities.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

The arboretum whose marshy soil sucked up the dreams of housing developers.

Three playfully immersive mini golf courses let you travel alongside your ball to the cup at this facility, which has been around since the 1950s.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This unique zoo is the only place in the world where you can see all 15 species of crane.

A large circus museum with summer performances.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

Experience the life of an 1800's lumberjack at this interactive museum that is only accessible by railroad.

This huge stew pot is the focal point of the "Community Soup" event, which honors tradition and soup.

Meet the "Green Monster" of Monico, Wisconsin.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.