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

A downtown park built on top of unclaimed graves.

This Chinese-style quartz sundial was saved in its final hour.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

This statue of an obscure comic strip hero stands as a tribute to patriotic service and a cautionary tale about embracing fads.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

The highest bridge in America was built for an almost unnervingly small amount of money.

Abortion, prohibition, religion, war, and fear all play a part in the history of this idiosyncratic Pacifica castle.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The second oldest continuously operating bar in Louisiana.

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

The final resting place of New Orleans' most famous voodoo priestess.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

A creepy steel gremlin has protected the Bay Bridge since 1989.

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.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

America's largest man-made forest was planted in an effort to bring back the past.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.