Washington Monument
Completed on July 4, 1829, the impressive monument was the first one dedicated to the nation's first president. An 18-foot statue depicting Washington caps the 160-foot white marble tower. The tower was designed and built by Robert Mills, the first architect born and educated in the United States; 19 years after completing Baltimore's Washington Monument, Mills designed and erected the national Washington Monument in D.C. After extensive restorations, the monument's lower-level museum has reopened; visitors can climb the 227-step circular staircase to the top and enjoy stunning bird's-eye vistas over downtown.