This sidewalk tribute honors Colorado's great culinary creation.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

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

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Even in death, he's still your huckleberry.

A walk through the historic city center, under the streets of Seattle.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

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

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

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

Perhaps the most scandalous statue of America's first president.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

An experimental, automotive replica of Stonehenge.