"A free and self-guided tour (no tickets required), the Portland Freedom Trail winds past 13 key sites celebrating 19th-century Black Mainers who fought to end slavery. It spotlights places along the local Underground Railroad used to secretly move formerly enslaved people into Maine and across the border to Canada (a crossing that signaled freedom). Included along the trail are other important historic abolitionist monuments, from the wharf, where many enslaved people stowed away on vessels to Maine, to churches-turned-meeting houses, private homes (with hidden passageways), and businesses that cleverly included anti-slavery pamphlets in their products." - Alexandra Hall