The only Bahá'í house of worship in North America and one of only a handful worldwide.

This massive redwood tree has a hole in the base big enough to drive through.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The ghost town that ended up on Ebay.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Historic funicular railway, believed to be the shortest railroad in the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

A hand-built folk art installation covered with messages of God's love.

The ghostly remains of an accidental sea.

The legendary building that needed ghostly approval before being built.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

This now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.