An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

Oddly shaped rock formation, misassociated with a nearby utopian community.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

This lovely public park has an intriguing past and unique wooden bridges made of concrete.

Lost subway station nestled beneath Toronto's busy commuter line.

Secret Swing.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

Miraculous tree that seems to sprout out of solid rock.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A mysterious spirit totem at the edge of Navajo lands.

This reclusive Hopi village in Arizona has been continuously populated longer than anywhere else in America.

Even in death, he's still your huckleberry.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.