The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

This 19th century train workshop is a treasure trove of railroad history.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

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

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Golden Gate Park's historic collection of plants.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

Two massive rock outcroppings on the Oregon coastline.

A massive sea stack famous for its appearance in The Goonies.

Only known mainland rookery of the threatened Stellar sea lion.

100-year-old shipwreck you can walk up to at low tide.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This former luxury resort in Kaua'i is now an abandoned relic.

The only museum with its curator—and her pets—buried inside.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.