2 Best Sights in C&O Canal National Historic Park, Montgomery County

Facing the C&O Canal National Historical Park across the Potomac River on the Virginia side, this is where the steep, jagged falls of the Potomac roar into the narrow Mather Gorge, the rocky narrows that make the Potomac churn. No matter the time of year, the views of the falls and river are spectacular, and more than 150 species of birds make their home in and around the 800-acre park. Great Falls Park is a favorite for outings; here you can follow trails past the old Patowmack Canal and among the boulders and forests lining the edge of the falls. There are three overlooks in the park, two of which are accessible to people with disabilities. Camping and alcoholic beverages are not allowed, but you can fish (a Virginia or Maryland license is required), climb rocks (climbers must register first at the visitor center or lower parking lot), or—if you're an experienced boater with your own equipment—go white-water kayaking (below the falls only).

As is true all along this stretch of the river, the currents are deadly. Despite frequent signs and warnings, there are those who occasionally dare the water and drown.

Staff members conduct special tours and walks year-round.

Beside Glen Echo Park's parking lot is this monument to the founder of the American Red Cross. Barton first used the structure, built by the founders of Glen Echo village, to store Red Cross supplies; later it became both her home and the organization's headquarters. Today, the building is furnished with period artifacts and many of her possessions. Access is by a 45-minute guided tour only, typically offered only on Friday and Saturday. Check the park's website to plan your visit.