by Aimee Levitt / Block Club Chicago / November 3, 2023 Lauren Viera’s book takes readers to a hidden garden in Humboldt Park, a Chicago Fire relic in Lincoln Park and other spots geared toward locals — or tourists looking to go off the beaten path. CHICAGO — Part of being a Chicagoan is hoarding secret spaces to show off to visitors and locals to prove how well you know the city. This is also the guiding spirit of Lauren Viera’s new book, “The 500 Hidden Secrets of Chicago.” “I definitely wrote it