A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

A real flying saucer, contracted by the U.S. Air Force.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

The world's first aircraft factory has been hiding inside an automobile plant for almost 80 years.

The childhood home of the Wright Brothers in Dayton.

A monument to the King's final show, complete with a time capsule.

This Indianapolis landmark offers a secret panoramic view of the city. 

These five houses were built for the 1933 Chicago World’s Fair.

An enigmatic concrete structure in a lakeside Toronto park raises more questions than answers.

This buzzy, award-winning building hovers 85 feet above the ground on a dozen colorful stilts.

An abandoned generator and motor factory has become a multi-use industrial campus.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

In 1847, Brigham Young climbed this hill to survey the Salt Lake Valley and saw a fine place to build a city.

The house where Lincoln drafted the Emancipation Proclamation.

The world's longest known cave system.

The last remaining vestige of a popular 1999 public art display.

This old-fashioned confectionary has been family owned and operated for more than a century.

A tribute to a great Texas blues musician.

Chicago’s last original drive-in restaurant is a family-run hot dog joint that started in 1948.

Pay your respects at this juke joint founded by a blues legend of the Mississippi Delta.

Swing by this iconic record store find out what’s going on in Clarksdale’s live music scene.