Must-seeWashington, DC
Monuments, the Capitol and the world's largest free museum complex, all on one great lawn.

The capital, colonial history and the Blue Ridge.
This is where the United States began. Within a few hours' drive you can stand in the room where the Declaration of Independence was signed, walk the fields of Gettysburg and see the Capitol where Congress still meets. Washington DC anchors the region with free world-class museums, and the Blue Ridge Mountains rise less than two hours west.
It's an easy region to combine. Philadelphia and Washington are two hours apart by train, and the Virginia history sites sit along one interstate.
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Must-seeMonuments, the Capitol and the world's largest free museum complex, all on one great lawn.
Must-seeWhere the Declaration and the Constitution were signed, with a great food scene around it.
Worth a detourThousands of cherry trees bloom around DC's Tidal Basin. The peak lasts only a few days; the Park Service forecasts it.
Worth a detourSkyline Drive runs 105 miles along the Blue Ridge, with waterfalls and summit views just off the road.
Worth a detourJamestown, Williamsburg and Yorktown: where colonial America began and where the Revolution ended.
Worth a detourThe Civil War's turning point, and the field where Lincoln gave his most famous speech.
If you're nearbyGeorge Washington's home on the Potomac, 15 miles south of the city named after him.
If you're nearbyJefferson's hilltop home and university, surrounded by Virginia wine country.
If you're nearbyRolling farmland where Amish families still farm with horses and travel by buggy.
If you're nearbyFrank Lloyd Wright's masterpiece, built right over a waterfall in the Pennsylvania woods.
If you're nearbyA sailing town of brick streets on the Chesapeake Bay, home of the US Naval Academy.
If you're nearby
If you're nearbyAn undeveloped barrier-island beach where wild ponies graze in the marsh.
If you're nearbyAmerica's newest national park: a deep gorge with whitewater rafting and a famous arch bridge.
If you're nearbyThe Inner Harbor, the National Aquarium, Fort McHenry and Maryland crab cakes.
If you're nearbyThree rivers, old inclines up Mount Washington for the view, and the Andy Warhol Museum.
Grey pins: guides still being written.
From independence to the last battle of the Revolution, in order.
Museums and monuments, then mountains, wine and Monticello.
Amtrak's Northeast Regional links Philadelphia, Baltimore and Washington in about two hours end to end, and both cities are easy without a car. For Shenandoah, Gettysburg, Lancaster and the Virginia history sites you'll need to drive; traffic around DC is among the worst in the country, so avoid weekday rush hours.
Summers are hot and very humid, with afternoon thunderstorms. Winters are cold but usually mild enough for sightseeing. Spring brings DC's cherry blossoms (late March to early April), and October brings fall color to the Blue Ridge.