This photo shows the interior under the rotunda.
There were many mural paintings representing famous scenes and
cities throughout American history. Eight alcoves extended out
from the rotunda. They held many objects important to American
history, including a fragment of Plymouth Rock, where the Pilgrims
Bancroft, Hubert Howe. The Book of the Fair. Chicago: The Bancroft Company, 1893. Further reproduction or distribution is prohibited without permission.