Only known mainland rookery of the threatened Stellar sea lion.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

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

On the Oregon coast is a natural hole that seems to be draining the sea.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

Historic Hull Street was actually the first street with a proper name in the Boston area.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The homestead of American patriot John Adams.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This landmark cemetery in Boston was created more than 300 years ago.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Community bookshelf of 25-foot-tall book spines.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Even with its slightly risible name this colossal cross is still able to inspire awe.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

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