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Greater Portland Landmarks preserves and revitalizes the architectural fabric, history, and character of greater Portland – renewing our neighborhoods, spurring economic development and keeping Portland one of the most liveable cities in America.

Landmarks is proud to provide leadership and advocacy, present educational publications, events and programs, and act as steward of the Portland Observatory (1807) for future generations.

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Portland History Docent Program

Greater Portland Landmarks welcomes volunteers to give tours at The Portland Observatory, Waking Tours and Tours of the US Custom House. Learn More » or Application.

Current Advocacy

Current Advocacy

Landmarks plays an important role in preservation, but we have recognized a new and essential opportunity in planning for tomorrow’s landmarks in Portland. Learn more »

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The Old House Trade Show

Save the date.  March 28 & 29, 2015, Holiday Inn by the Bay, 88 Spring Street. Learn more »

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Since 1807, the Portland Observatory has offered spectacular views of Portland’s busy harbor and served as a beloved symbol of the city’s rich maritime heritage. Named a National Historic Landmark in 2006, the Portland Observatory is the only known remaining historic maritime signal tower in the United States.

The Observatory will re-open for the 2015 tour season on Saturday, May 23, 2015.

Visit the Observatory


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Portland Observatory

138 Congress Street
Portland, ME 04101
(207) 774-5561
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