Saturday, September 26, 2026 · 10:00 AM – 12:00 PM
Prospect Hill Monument — 68 Munroe St., Somerville, MA
HISTORY UNLOCKED: DROP-IN CHATS Select THURSDAYS 6-8 pm Select SATURDAYS 10 am-12 pm THE POWDER HOUSE, MILK ROW CEMETERY & PROSPECT HILL TOWER will be open to the public on select dates and times from May through October, as part of HISTORY ON THE LINE, a series of exhibitions and programs