Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

The highest point in Washington state is a volcano covered in glaciers.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

This black shoreline is made up of exploded lava particles.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

Three prestigious academic collections come together to create a world-class natural history museum.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

Lie in a hammock where George Washington stood.

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

Bowl in splendor, if you're lucky.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Lucha Libre (Mexican Wrestling) themed taco shop.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

During the holidays, a vintage subway train whisks New Yorkers back in time.

No matter what it might seem like on film, most scenes filmed on a plane are filmed at this LA studio.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.