Washington, D.C. is the capital of the United States and the seat of its three branches of government. The city offers many historic sights, world-class shopping, fine dining and good nightlife. The city is modern, exciting, and cosmopolitan.   TABLE OF CONTENTS:  Introduction To Washington, D.C. - Overview - Orientation - Culture - Climate & When to Visit - Sightseeing Highlights - U.S. Capitol - White House - Washington Monument - Franklin Delano Roosevelt Memorial - Jefferson Memorial - Smithsonian Institution National Air and Space Museum - Vietnam War Memorial - United States Holocaust Memorial Museum - Hillwood Estate, Museum and Gardens - U.S. Botanic Garden - National Aquarium - Frederick Douglass National Historic Site - Washington National Cathedral - Recommendations for the Budget Traveler - Places to Stay - Places to Eat - Places to Shop