The last masonry skyscraper ever built reveals a transitional moment in architectural history.

True to its name, this little house presents like a dollhouse, and surprising details are revealed with a quick peek through the window.

The "All-Seeing Eye of God" symbol on this library is a clue to one of the many former lives of this building.

A chance to follow in the footsteps of the word's most legendary animator.

Thousands of prehistoric artifacts from the region around Laayoune are preserved by one man in this small museum.

Cemetery featuring rare glass-fronted columbarium.

A monument to the art of slicing people open.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

No one knows how many bodies are in this vault in a Chicago public park.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

The only Chicago bridgehouse open to the public contains a museum devoted to the Chicago River.

A unique 3-D sculpture based on Rene Magritte’s “The Red Model.”

The entire history of the U.S. Space Shuttle Program is painted on an enormous roadside water tank.

This statue is in the center of San Jacinto Plaza, commemorating the live alligator pond that once stood in the area.

This site honors the end of a 100-year boundary dispute between the United States and Mexico—all started by a river's shifting course.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

More than 21,000 images fill this overlooked gem of a prehistoric site.

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A lighthouse on this West Virginia lake started as a joke, then the forces of nature helped make it a reality.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

Home to a protest movement, a bombing, and a dramatic change in labor history.

This massive circular sculpture may not be a portal to other worlds, but it does inspire the mind to imagine them.