So many migrating birds roost on the bridge, it has a special summer speed limit.

The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

The time thousands of bags of chips washed ashore in the Outer Banks is memorialized in a local museum.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

Ruins of an American Civil War iron forge still survive today.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

Little Red Lighthouse under the George Washington Bridge.

Mysterious 500-year-old tapestries depict a unicorn hunt.

The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

America's oldest Italian restaurant is a San Francisco institution.

One of few lasting examples of the brief octagon craze that developed into folly.

Early prototype for Frank Lloyd Wright's Guggenheim.

This turn of the century masterpiece has a mysterious goaty interloper.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This private residence was the template for one of the most beloved television homes of all time.

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

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.