An unusual slot canyon in the Aztec/Navajo Sandstone has a cross-section like an inverted old-fashioned keyhole.

Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

Dedicated to the history of the health sciences.

The oldest liquor store in the country is a model of resilience and mischief.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

A tree bears footwear on the loneliest road in America.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Only intact Ichthyosaur skeleton in the United States.

This central Nevada cave is the spiritual home of ancient and enigmatic pictographs.

This rest area is also home to a remarkable petroglyph site.

At this Nashville restaurant, cheese and charcuterie arrive via conveyor belt.

This cheese shop also houses a museum devoted to Dutch dairy.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

These murals have been brightening a Chicago beach for more than 30 years.

This art gallery and oddities boutique bewitches visitors with a trove of occult trinkets and eccentric antiques, work by an ever-changing roster of underground artists, and classes in tarot and other mystic arts.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Huge abstract sculptures of the Puerto Rican Flag.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

A curious collection of miniatures in a quiet corner of the Chicago Children's Museum.

These mansions date back to Chicago's days as a brewer's paradise.

The 606 is a decade in the making.