Nantucket's town library is a great white Greek Revival building, with a windowless facade and fluted Ionic columns. Completed in 1847 to replace a structure lost to the 1846 fire, it's one of the oldest libraries in continuous service in the United States. Astronomer Maria Mitchell was its first librarian. Opening ceremonies included a dedication by Ralph Waldo Emerson, who—along with Daniel Webster, Henry David Thoreau, Frederick Douglass, Lucretia Mott, and John James Audubon—later delivered lectures in the library's second-floor Great Hall. During the 19th century the hall was the center of island culture—a role it fulfills to this day. The adjoining Atheneum Park is a great place to relax for a while, and the spacious Weezie Library for Children hosts readings and activities—a welcome respite for a rainy day.