Ryan Bickel of Portland watches the fireworks display at the Eastern Promenade in Portland on Monday. Ben McCanna/Staff Photographer

Salinda Ngo lights sparklers on the Eastern Promenade before the fireworks display. Ben McCanna/Staff Photographer

Mark Shapp of Westbrook sports a sequined Uncle Sam costume while waiting at a concession line Monday before the 4th of July celebration got underway. Ben McCanna/Staff Photographer

Daniel and Gayle Brazeau of Scarborough hold hands at the start of the 4th of July celebration at the Eastern Prom. Ben McCanna/Staff Photographer

Portland police stroll the Eastern Prom on Monday afternoon before the Fourth of July celebration. Ben McCanna/Staff Photographer

Jesus Madondo of Portland strolls the Eastern Promenade on the Fourth of July. Ben McCanna/Staff Photographer

Portland celebrates the 4th of July with a fireworks display at the Eastern Promenade. Ben McCanna/Staff Photographer

Members of the Portland Fire Department observe a moment of silence as the names of the Great Fire victims are read during a ceremony at Monument Square commemorating the 150th anniversary of the conflagration. From left are Nick Calvert, Nathan Asdourian and Capt. Curt Magnuson. Ben McCanna/Staff Photographer

The Rev. Jeffrey McIlwain offers a prayer for Portland during a ceremony in Monument Square commemorating the 150th anniversary of the Great Fire. Local historian Herb Adams is at left. Ben McCanna/Staff Photographer