This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

A world-class observatory in the California desert.

The unbelievably opulent home built for an infamous newspaperman.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Historic funicular railway, believed to be the shortest railroad in the world.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

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

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

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

The ghostly remains of an accidental sea.

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

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

Beside a busy highway, a colony of Great Blue Herons raises hundreds of offspring each year.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

The spectacular collection of one of the world's best woodcarvers.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The largest earthwork effigy in the world.