One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

A forsaken wonder in the middle of the East Side neighborhood.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Famously misunderstood wonder of the ancient world

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

On the Oregon coast there is a natural hole that seems to be draining the sea.

Statue of death tucked in the University of Medicine courtyard.

Abandoned railway line circling the city of Paris.

One man's love of natural beauty led to the creation of this hidden granite monument.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

Where NASA's satellites and rovers phone home.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

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

Celebrating the transformation of trash into objects of beauty.

A trash dump made beautiful by nature's power.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

The rare American Civil War-era weapon was never fired in anger.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

This historic furnace was once used to produce cannonballs during the Civil War.