Penobscot Tower – 128m Posted on July 7, 2017May 3, 2020 by paschmann in Instagram, Travel View this post on Instagram The Penobscot tower is the tallest public bridge observatory in the world https://en.m.wikipedia.org/wiki/Penobscot_Narrows_Bridge_and_Observatory A post shared by Paul Aschmann (@paschmann) on Jul 7, 2017 at 7:44am PDT