Socially distanced discoveries abound at local cemeteries. Sleepy Hollow Cemetery in the Hudson Valley has walking tours focusing on Washington Irving and evening lantern tours of the resting place of William Rockefeller and Andrew Carnegie. Brooklyn’s Green-Wood Cemetery is celebrating the Mexican holiday El Día de los Muertos, or Day of the Dead, through Nov. 1; visitors can place personal offerings on a large-scale community altar, designed by the artist Scherezade Garcia.
