"By 1805 Smibert's Faneuil hall was no longer large enough to serve the city. The renowned Charles Bulfinch, who by then had already completed the new State House, was chosen to expand the hall. In a brilliant design, Bulfinch doubled the building's height and width, and so kept intact walls from the earlier building. Instead of being three bays across, it became seven. A third floor was added, and the building's cupola which had been centered, was moved to the east end, as seen below."

— from Faneuil Hall at iBoston.com

The third floor of Faneuil Hall still houses the Ancient and Honorable Artillery Company. Founded in 1638, this is the oldest military company in the US, and considered the third oldest in the world.

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The lovely grasshopper weathervane survives from the original 1742 Faneuil Hall building.

Adjacent to the Faneuil Hall Marketplace by Commercial Street.