Sign board in front of a clock tower, Custom House, Boston, Massachusetts, USA

building guidance road sign signpost guidepost sign signboard sign post directions road signs new england traveling arrow sign blue boston building exterior building structure capital letter clear sky clock clock tower close up color colour color image custom house day famous place information board local landmark low angle view massachusetts nobody orange outdoors sign board skyline skyscraper text time tower usa us united states of america america united states north america vertical architecture city location direction travel destinations travel journey world travel photography