A tunnel with windows, so you don't miss out on the impressive views.

A kitschy stop on the way to Zion National Park.

This massive swimming pool is the high tech home to the human-powered submarine races.

Blink and you’ll miss it—the tiniest street in America packs a lot of charm into just a few steps.

An Ohio man paved the way for the future of American transportation.

Former self-sufficient mental institution now a planned community.

A charming remnant of 19th-century fishing towns sits on Michigan’s Leelanau Peninsula.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

This tribute to a local man towers within a quaint lakeside park.

The structure has welcomed visitors to this scenic harbor city on Lake Michigan for many decades.

Check out the Heidelberg printing presses in the workshop of an artist known for documenting the natural world on greeting cards.

This former county courthouse was originally an opulent hotel and entertainment venue.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This stunning concert hall has become a symbol of Iceland's national recovery.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This Ocean Drive crosswalk has been paved in rainbow colors to honor the LGBTQ+ community and the man who brought pastel to Miami Beach.

In paradise, feral pigs have claimed an island all to themselves.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

An architect's childhood fantasy treehouse made real.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

This rustic old building is said to be the most photographed barn in America.