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Hace 23 horas · The Washington Monument is a hollow Egyptian -style stone obelisk with a 500-foot-tall (152.4 m) column surmounted by a 55-foot-tall (16.8 m) pyramidion. Its walls are 15 feet (4.6 m) thick at its base and feet (0.46 m) thick at their top.
- 106.01 acres (42.90 ha)
- 555 ft (169 m)
- 1848–1854, 1879–1884
