Whether or not Edgar Allen Poe’s raven perched upon a pallid bust in Philadelphia or elsewhere is up for debate, but there’s no doubt that he visited the Athenaeum—his signature from 1838 is in the guestbook. Ruth Scott Blackson dives deep into Poe’s colorful history in Philly with her installation Through the Pale Door, on display at the Athenaeum as part of the 2013 Hidden City Festival, opening today