Perched atop Munjoy Hill since 1807, the Portland Observatory stands as the last of its kind in the United States. This historic signal tower once used telescopes and signal flags for ship-to-shore communication, alerting Portland’s harbor well before vessels arrived.
Today, Greater Portland Landmarks cares for this unique landmark, offering guided tours led by knowledgeable tour guides from Memorial Day to Columbus Day. For a small fee, visitors can explore the building’s history and take in breathtaking views from the cupola, stretching to Mount Washington on clear days.
