Capitol Story Image: 

The base, or skirt, provides the dome with a visual foundation. Behind the skirt are the 72 paired brackets that support the columns of the lower story of the drum.

The Capitol Story
The Capitol Dome
Image Caption

Base

The base, or skirt, provides the dome with a visual foundation. Behind the skirt are the 72 paired brackets that support the columns of the lower story of the drum.

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The Capitol Story
The Capitol Dome