Stripes of flowers bloom each spring in a 50 acre rainbow of color.

This impressive tunnel was dug entirely by hand over the course of 36 years.

One of the ghostly stops along Route 66.

A modern mechanical planetary system, part of a 10,000 year clock.

Travelers exchange letters with woodland creatures at this mini post office.

Quite simply the largest tree in the world (by volume).

The site of murders and Satanic cult gatherings.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The largest drain hole in the world.

Canyon walls shrouded in ferns.

Olfactory delights in San Francisco's Botanical Gardens.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

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

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Abandoned bridge hidden deep in the San Gabriel Mountains.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Medical and zoological curiosities for sale.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

Towering basalt columns, a creation of fire and ice.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.