Inside the ground floor lobby, there is a statue of George Washington. An elevator provides transportation to the top floor, the 500' observation deck at the base of the pyramidion. The observation deck provides views out two windows on the north, south, east, and west sides of the pyramidion.

Beyond its hollow stone exterior, the Washington Monument contains a sophisticated interior designed for both structural stability and public education. The most prominent feature is a high-tech elevator that whisks visitors to the top in about 70 seconds. Inside the ground floor lobby stands a statue of George Washington. At the summit, the 500-foot level houses an observation deck with windows offering panoramic views of D.C., Maryland, and Virginia. Just below, at the 490-foot level, a small museum provides historical context on the monument’s construction. Perhaps most uniquely, the interior walls are embedded with 193 commemorative stones donated by states, cities, and foreign nations, many of which are visible during the elevator's slow descent. While a spiral staircase of 896 steps also exists, it has been closed to the public since 1976.