This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

A free museum that memorializes the deadliest river flood in American history, and the civil engineering efforts to tame the Mississippi River.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Created by a local artist, these quirky sculptures each have their own names and personalities.

The world's largest collection of historic U.S. military naval vessels.

The largest battery in New England sits atop a Massachusetts mountain.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Soaring over the Niagara Whirlpool since 1916.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A plaque on the base of this statue holds a bewitching design.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

One of the two USPS mailboats left in service docks regularly at Weirs Beach, Bear Island, and other Lake Winnipesaukee islands to deliver their mail.

A hidden gem, named after a San Franciscan icon, offers spectacular views of the Pacific Ocean.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A unique collection of more than 250 rocks and minerals located on a university campus.

This miniature museum is home to a vast array of insects.

This massive solar generating facility in the Nevada desert has been plagued by difficulties.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

In a city crazy for seashells this museum educates and amazes visitors using the wonder of cast-off exoskeletons.

Just below the surface, shrimp are producing temperatures hotter than the sun.

Pay homage to a mysterious feline artifact outside of this Florida museum.