The Washington Monument is east of the Lincoln Memorial .
Located almost due north of the Reflecting Pool and the Lincoln Memorial , the Washington Monument , made of marble , granite , and bluestone gneiss , is both the world 's tallest stone structure and the world 's tallest obelisk , standing 554 ft tall according to the National Geodetic Survey measured 201 -2014 or 555 ft tall according to the National Park Service measured 1884 .