The largest underground pedestrian tunnel system in the U.S. mostly caters to the people working in the offices above, but provides a great, air-conditioned way to traverse the city.

Known as one of America's most beautiful public restrooms.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

Texas's oldest bakery serves authentic German pastries, including legendary strudel.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

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

Wisconsin’s oldest Chinese restaurant, still glowing beneath its historic neon sign.

A historic ballroom host to famous performers from the big band era to 1980s rock.

A hidden gem that highlights the life and innovations of Les Paul, the "Wizard of Waukesha."

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

The only thing these street signs will help you navigate is your imagination.

Built in France in the 1400s, this gothic chapel now resides at Marquette University in Milwaukee, Wisconsin.

A factory in Milwaukee where poop is reclaimed… and recycled.

This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

A museum celebrating the self-taught artist-environment builder.

A Milwaukee museum provides an unsparing and ultimately empowering look at the Black American experience.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

This quirky museum has a collection of more than 15,000 bobblehead dolls.

Statue dedicated to the star of an old television show.

One of Frank Lloyd Wright's final works was this UFO church.

According to the legend, this strikingly beautiful hill has miraculous healing powers.