Washington Monument is one of the most famous landmarks in Washington, D.C., the capital of the United States. Standing majestically in the center of the National Mall, it is 169 meters high and is the tallest stone obelisk in the world. Climbing up to the observation deck, you can see the magnificent scenery of the entire city, including the White House, the Capitol, and the Lincoln Memorial. At night, the monument is even more solemn and magnificent under the lights, telling the glorious history of the United States. Whether it is day or night, this is a classic attraction that tourists must visit to experience the perfect combination of history and magnificent scenery!