Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

10,000 flowered plants bloom in the City of Roses.

The world's last remaining store of its kind.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

The southernmost outpost of the Russian Empire in colonial America.

This abandoned boat was left in place thanks to its rotting beauty.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Get up close to emus and ostriches, or buy their tasty meat.

An alley covered with 20 years of bubble gum.

This fully intact Neoclassical-Greek Revival style firehouse operated until 1938.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

A fine mixture of the old and the new topped with an art deco neon spire.

The California capital city once stood 10 feet lower than it does today.

Art Deco stylings conceal the true nature of this bridge.

Outsider art or homage to aliens?

This museum boasts the ninth-largest collection of insects in North America.

A huge collection of rocks, gems, and crystals.