For 20 days this spring, 24 historic sites in the Washington, D.C., area battled for votes from the public that would decide which site would receive grant money from a $1 million pot funded by the American Express Foundation and the National Trust for Historic Preservation.

For 20 days this spring, 24 historic sites in the Washington, D.C., area battled for votes from the public that would decide which site would receive grant money from a $1 million pot funded by the American Express Foundation and the National Trust for Historic Preservation.

For 20 days this spring, 24 historic sites in the Washington, D.C., area battled for votes from the public that would decide which site would receive grant money from a $1 million pot funded by the American Express Foundation and the National Trust for Historic Preservation.