At 130 years old and 126 feet tall, it is the largest known example of the rare Torrey pine tree.

Colorful Native American paintings are hidden within this small cavern.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

An alley covered with 20 years of bubble gum.

A Mysterious Masonic tomb in San Luis Obispo.

A house built from trash known as the poor man's Hearst Castle.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

The unbelievably opulent home built for an infamous newspaperman.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

What if the cure for all that ails you was as simple as repeated exposure to low-dose radon?

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

An Australian lake whose pink hue defies scientific explanation.

This magical grotto is adorned with a complex pattern of native seashells, minerals, and fragments of colored glass.

A bizarre house filled with an astounding array of collections.

The kitsch mansion of the former Romanian president Nicolae Ceaușescu features a golden bathroom.

Try the frozen treat that inspired Arrested Development's famous banana stand.

The palace of the King of Kings, burned by Alexander the Great.

This ancient fortress in Iran was once the oldest and largest treasury in the world.

This cliff-face port is considered a masterpiece of mining engineering.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

The world’s tallest outdoor lift stretches along the stone pillars that inspired the floating mountains in the movie “Avatar.”

If you don't look closely, you might mistake this sculpture for just another passenger waiting at the airport.

Hundreds of Buddhas in a re-discovered Indonesian temple.