Washington slept here, and so did some of his family. It's the oldest surviving presidential residence in the country, and after major renovation, the house has reopened to the public. Do you know where it's located?

In a surprising move that resolves a long-simmering feud, the proponents of the American Revolution Center have worked out a deal with the National Park Service to build the complex in Philadelphia at Independence National Historical Park and not in the middle of Valley Forge National Historical Park.

Units of the National Park System are really closer than you think. Some are quite literally in your backyard. Today we're pointing out those that are within an hour's drive of an airport with commercial service.

Nobody was able to correctly identify the NPS units in that Marine Corps commercial we invited you to look at. It’s not as simple as it seems. Here’s the solution.

Do you think you’re pretty good at recognizing national parks? Even when you get only brief glimpses? OK, see if you can spot all of the NPS units in the extended version of this Marine Corps commercial featuring the Silent Drill Platoon.

Rehabilitation projects, invasive species eradication and biodiversity research were among the $27 million worth of Centennial Initiative projects for the National Park System announced Tuesday by Interior Secretary Dirk Kempthorne and NPS Director Mary Bomar.