what is the longest highway in the united states
U.S. Route 20 U.S. Route 20 (US 20) is an east–west United States highway that stretches from the Pacific Northwest all the way to New England. The "0" in its route number indicates that US 20 is a coast-to-coast route. Spanning 3,365 miles (5,415 km), it is the longest road in the United States,[2] and the route roughly parallels that of Interstate 90 (I-90). There is a discontinuity in the official designation of US 20 through Yellowstone National Park, with unnumbered roads used to traverse the park.
51st state Before Alaska and Hawaii became states of the United States in 1959, the corresponding expression was "the 49th state".
Washington, D.C. Washington, D.C., formally the District of Columbia and commonly referred to as "Washington", "the District", or simply "D.C.", is the capital of the United States.
Lincoln Tunnel The Lincoln Tunnel is an approximately 1.5-mile-long (2.4Â km) tunnel under the Hudson River, connecting Weehawken, New Jersey on the west bank with Midtown Manhattan in New York City on the east bank. It was designed by Ole Singstad and named after Abraham Lincoln.