What is the "whispering gallery" in the U.S. Capitol?
The half-dome shape of National Statuary Hall produces an acoustical effect whereby, in some spots, a speaker many yards away may be heard more clearly than one closer at hand. The modern-day echoes occur in different locations from those in the 19th century, when the floor and ceiling of the hall were different.

Highlight
Liberty and the Eagle Sculpture
In the niche above the entablature on the south wall of National Statuary Hall stands the heroic-sized figure of Liberty.
House Wing