A monument celebrating the idea of reaching inaccessible places.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

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

Sip whey-based vodka at the first Native-owned distillery opened on a reservation in centuries.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

At the top of a local ski mountain is a hidden cemetery containing the graves of just two soldiers.

This museum in the woods evokes the work and lives of Michigan's 19-century lumberjacks.

What was once the largest NFL stadium.

World's largest Christmas store.

A place for ship-lovers to watch the passage of freighters traversing the Great Lakes while learning about their history.

Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.

Once the tallest building in Detroit, this Gothic church houses some of the oldest stained-glass windows in the country.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

The world’s largest Masonic temple was saved by the White Stripes.

Detroit housing collective working to create an "environment for revolutionary change."

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

A painted-over wall in Detroit originally built to segregate a black community from an adjacent white development.

The world's oldest operating jazz club has been in operation since May 1934.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

This elaborately-carved white marble fountain was built to stand outside the Detroit Opera House.

Where the Model T was made and the assembly line was invented.