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

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

Interactive museum complete with costumed re-enactors and the only known surviving chest from the Boston Tea Party.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

This monument is dedicated to Balto, the heroic Alaskan sled dog.

This enormous World War II relic is one of the largest wooden structures in the world.

Where the rich wintered in Pasadena.

Two groundbreaking brothers from Pasadena.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

With beautiful views and every detail perfectly considered, one of the geniuses of modern architecture built himself the perfect home.

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

An ancient mineral hot spring sits at the middle of this combination cultural center and spa.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

Art Deco stylings conceal the true nature of this bridge.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

This Taoist temple is the oldest continuously used Chinese temple in California.

This little museum has an exhibit devoted to the elusive forest denizens.

A simple plaque remembers a California island massacre that claimed more than 100 lives.

Commonly referred to as the most photographed Victorian home in the United States.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.