The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

A historic canal winds through a unique, swampy landscape.

A statue honoring 44 continuous years of greeting passing ships.

"X" marks the spot of an echo chamber in the middle of a plaza.

This kitschy tavern is also home to rare early editions of "Treasure Island."

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The first declared National Monument in the United States.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A cemetery housing wild west legends in South Dakota.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

Curtiss is a forgotten figure in the early history of flight.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

This statue of the "father of television" stands prominently in the United States Capitol.

Home to a vast and influential collection of Shakespeareana.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

Fittingly, America's museum of architecture is itself a magnificently designed old building.