A spring-fed pool so deep it's used for scuba diving as well as swimming.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Life's work of sculptor Elisabet Ney remains preserved in her last studio.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

Free public park and gardens filled with peacocks and peahens.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

One part antique store, one part curiosities hodge-podge.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A modernist landscape of water and sci-fi concrete.

An emerald-green grotto just a short trip from Austin.

This downtown Dallas art installation is always on the lookout.

A historic custom house with ties to George Washington is now a shrine to local nautical history.

Stolen goods adorn the organ at Old North Church.

This classic red schoolhouse is said to have been where Mary and her little lamb went to school.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Located in Faneuil Hall, the headquarters of the Ancient and Honorable Artillery Company of Massachusetts has stood the test of time.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.