Blackwater Falls State Park, West Virginia, US

Blackwater Falls’s namesake cascade isn’t just the most picturesque spot in this 2,456-acre park—it’s also one of the most photographed places in the state.


Cache River State Natural Area, Illinois, US

There are a number of famous swamps in Illinois’ Cache River State Natural Area, a nearly 15,000-acre state park 30 miles from the Kentucky border. They include Everglades and Okefenokee.


Ludington State Park, Michigan, US

Snug between Lake Michigan and Hamlin Lake, this nearly 5,300-acre park has seven miles of sandy, dune-strewn beaches, a historic lighthouse you can climb, more than 20 miles of hiking trails and the shallow, clear Big Sable River.


Valley of Fire State Park, US

One of the state’s best-loved parks is the Valley of Fire, 42,000 arid acres about an hour’s drive northeast from Las Vegas. The park delivers its own kind of high-stakes drama, trading neon lights and nightclubs for 150 million-year-old sandstone formations.


Ordesa, Spain

Spain’s oldest national park offers some of the best hiking in the Pyrenees yet it is little-known beyond the Spanish border.