'On December 6, 1884 this was capped with a 100-oz., 9-inch-high pyramid-shaped block of aluminum, a metal that was rare at the time'
the Washington Monument
U.S. STRUCTURES: On December 6, 1884 this was capped with a 100-oz., 9-inch-high pyramid-shaped block of aluminum, a metal that was rare at the time
On December 6, 1884 this was capped with a 100-oz., 9-inch-high pyramid-shaped block of aluminum, a metal that was rare at the time
On December 6, 1884 this was capped with a 100-oz., 9-inch-high pyramid-shaped block of aluminum, a metal that was rare at the time
U.S. STRUCTURES
the Washington Monument
U.S. STRUCTURES