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

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

An extensive collection of ancient Egyptian artifacts and mummies.

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

The rocks in this arid basin leave trails of movement behind them.

This glass-stain Mary attracted thousands of pilgrims until her head was shattered by a vandal with a slingshot.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The first safe in this California town had to hold all the gold.

Haunting and beautiful trees, doomed to die.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

Marta Becket's hand-painted theater in the desert.

Would you like a sleeper hold with that?

A public urinal so pretty, it was declared a national monument.

A floating cat sanctuary on an Amsterdam canal.

Indents in the pavement are all that remain from a grisly death machine in Paris.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

Kings Cross Station pays tribute to its role in Britain's best-selling book series.