Resplendent with exotic trees and plants, and networked by paved paths, the Botanical Gardens date from 1818. Take a stroll or relax in one of the handsome wooden gazebos; at Christmas time, trees along the Savannah-facing walkway are lit up with thousands of colorful fairy lights. A graceful mansion built in 1875, the adjacent President’s House is undergoing major repairs and sits shrouded under a protective roof, its west wing having collapsed in early 2010.