New York City
Maybe it would take less time to talk about what you couldn't do in the Big Apple. From the shows of Broadway to the breathtaking views from the Empire State Building, the city that never sleeps has something for everyone in the family. Visit the massive oasis of Central Park, explore unparalleled museums such as the Museum of Modern Art and the American Museum of Natural History, and enjoy more dining options per block than anywhere else.
Philadelphia, Pennsylvania
Philadelphia's Liberty Bell is one of the best-known symbols of freedom. Displayed in Philadelphia's historic district, across from Independence Hall, the bell is an essential part of any trip to the City of Brotherly Love. Families also love running up the steps of the Philadelphia Museum of Art, just like Rocky; scarfing cheesesteaks from Pat's or Gino's; and touring the historic and creepy Eastern State Penitentiary (whose Halloween haunted house is great for teens).
Washington, D.C.
The nation's capital may have more famous landmarks per square foot than any American city. The Lincoln Memorial is inspiring and awesome, but don't miss the less popular Jefferson Memorial, either. Be sure to check out the Washington Monument and the Mall, the site of some of the largest and most important civic demonstrations in the nation's history, such as Martin Luther King's "I Have a Dream" speech.
The Jersey Shore
Stretching along New Jersey's Atlantic coast is an endless series of beach resorts, each with distinct character. The rustic Southern Shore includes the Cape May wetlands, and the desolate Pine Barrens. Atlantic City's nightlife and historic boardwalk make for an active shore vacation. Closer to New York City, the Shore Region features the Six Flags Great Adventure theme park, which has some of the tallest and fastest roller coasters in the world.
Baltimore's Inner Harbor
Begun as a revitalization project in the 1970s, Baltimore's Inner Harbor is a sparkling, walkable stretch of city with museums, restaurants, and other attractions. The National Aquarium is one of the world's largest, and Camden Yards, home of the Baltimore Orioles of Major League Baseball, is considered by many to be the finest example of the retro style in stadium design.