A giant Troll lurks under one of Seattle's oldest bridges.

Granting the right of way to ships over surface traffic since 1917.

A 1,000 pound brass bell commemorates a time when this small maritime neighborhood was actually its own separate city.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

The same security that protects our nukes accidentally protected a gentle herd of antelope.

Oddly shaped rock formation, misassociated with a nearby utopian community.

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

The easiest way to the highest point in Wyoming is only accessible via one hefty fee.

A popular rock that acted as a waymarker for American pioneers.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

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

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

This erect, phallic geological spire wasn't always named so domestically.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

The vaguely man-shaped root that ate the body of the founder of Rhode Island.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

This stone memorial pays tribute to a massive shipwreck which was sadly overshadowed by the death of John Wilkes Booth.

The secret city built by the Manhattan Project.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.