Capitol Story Image: 

Topping the dome, this temple-like structure houses lights that shine only when Congress is in evening session. The observation platform at the base of the tholos is approximately 210 feet above the Capitol’s east front plaza.

The Capitol Story
The Capitol Dome
Image Caption

Tholos

Topping the dome, this temple-like structure houses lights that shine only when Congress is in evening session. The observation platform at the base of the tholos is approximately 210 feet above the Capitol’s east front plaza.

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The Capitol Story
The Capitol Dome