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Capitol Building Statistics

Height: 267 feet from the ground to the tip of the finial above the dome.

Length: 420 feet, 2 inches

Width: 273 feet, 11 inches

Perimeter: 1,520 feet

Area: 1 and 1/6 acres

Construction Period: Six years (from the summer of 1872 until September 26, 1878). The building was dedicated on January 1, 1879.

Restoration Period: Three years, from 1989 through 1992. The building was rededicated on November 19, 1992.

National Historic Landmark: In 1992 the National Park Service designated the Capitol a National Historic Landmark, an award reserved for America's most important historic places. To qualify, a site must possess exceptional historical, architectural or artistic significance for the nation as a whole.