A tree grown from astronaut seeds which were exposed to cosmic rays.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

A serene garden path lined with 36 haiku stamped into clay stones.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

"I did this all while you were watching TV."

A natural formation that resembles a camel resting in the New Mexico desert.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

Look closely and you’ll notice that the color changes a third of the way up the tower.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

When life gave this firefighter a forest fire, he made a rough-hewn sculpture park using a chainsaw.

A sculpture of a flying hawk made from colorful car doors.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

A crumbling hospital from the 1850s on Roosevelt Island.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This tiny home was originally a narrow alleyway.

An abandoned concrete jungle surrounded by a lush park.

This giant green head remembers one of America's jazz giants.

This recently restored timepiece has stood all around Kansas City.

The only nuclear weapon assembly and disassembly plant in the U.S.