State Parks

The ruins of a military outpost from the 1860s form the centerpiece of a Nevada state park.

Hidden behind a YMCA stands the remains of a ceremonial site that dates back hundreds of years, whose ground is still considered sacred to many Hawaiians.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

A New Jersey state park that was once Napoleon's brother's sprawling estate.

A 1960s damming project turned one family’s hilltop cemetery into an island.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

Ruins of an old sugar mill sitting quietly next to a park in rural Florida.

The remains of a foundry and old blast furnaces destroyed during the Civil War are preserved in this central Alabama park.

The hidden ruins of a mill that is linked to an attempt to assassinate the vice president of the United States.

This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

A 60-foot-tall tower provides unparalleled views of the southern Green Mountains.

Built in 1815, the stabilized ruins of the grist mill and sawmill are now gated, but interpretive displays on the features and functions of the mill preserve its history.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

Meant for a railway that was never built because of the Great Chicago Fire, these piers still stand nearly 150 years after they were installed.

These unique volcanic rock formations offer the perfect opportunity to camp and hike.

Nestled in Onondaga State Park, over 100 canoes carefully stacked in a replica of the famous standing stones.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.