Trip Planner:   USA  /  Maine  /  Portland  /  Portland Observatory

Portland Observatory, Portland

#18 of 124 in Things to do in Portland
Observation Deck · Hidden Gem · Landmark
The Portland Observatory is a historic maritime signal tower at 138 Congress Street in the Munjoy Hill section of Portland, Maine. Built in 1807, it is the only known surviving tower of its type in the United States. Using both a telescope and signal flags, two-way communication between ship and shore was possible several hours before an incoming vessel reached the docks. The tower was designated a National Historic Landmark and a National Historic Civil Engineering Landmark in 2006; it is now managed by Greater Portland Landmarks, a local historic preservation nonprofit. It is open to the public as a museum.

Put Portland Observatory and other Portland attractions into our Portland travel planner, and watch your holiday take shape.
Create an itinerary including Portland Observatory
© OpenMapTiles © OpenStreetMap contributors

Portland Observatory reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
496 reviews
  • If anyone sought a unique view of Portland, this would be the place to go. Built in 1807, this adorable edifice stood atop Munjoy Hill in the city’s East End. When I went, the signal tower was still.....  more »
  • The Portland Observatory is of historic significance. The observatory was built in 1807 it served to communicate with ships providing two way communications. There were both a telescope and signal.....  more »
  • Beautiful interior! I loved visiting this cafe and would recommend for others to try it out. My mocha was very good and not to sweet. I went around 4pm, but by then most food options had run out. Get there early if you would like to grab one of their goodies!!
  • Historic place. Lot to learn from the guide. Nice people around. We really liked the girl on the top floor who explained everything in detail and took our family photo. Great experience.

Plan your trip to Portland

  • Get a personalized trip
    A complete day by day itinerary
    based on your preferences
  • Customize it
    Refine your trip. We'll find the
    best routes and schedules
  • Manage it
    Everything in one place.
    Everyone on the same page.