Lower Manhattan is (and, in some cases, was) rich with architecture that illuminates significant incidents from U.S. history. It spans the former Old City Hall site where the Bill of Rights was adopted by Congress – and Aaron Burr and Alexander Hamilton teamed up successfully, four years before their duel, to obtain an acquittal in a murder case – to the Surrogate’s Court modeled on the Paris Opera House, and Cass Gilbert’s federal courthouse, where the Rosenbergs and Alger Hiss were tried. Robert Pigott, author of “New York’s Legal Landmarks,” leads this tour of historic courthouses beginning in the financial district and ending in Foley Square. In a little more than one mile, he brings out surprising connections between courthouses past and present and architecture, history and literature and film. Each attendee will recieve a complimentary copy of Mr. Pigott’s book.