Whispering gallery to the walls, an effect that was discovered in the whispering gallery of St Paul's Cathedral in London. The extent to which the sound travels at St Paul's can also be judged by clapping in the gallery, which produces four echoes. Other historical examples are the Gol Gumbaz mausoleum in Bijapur and the Echo Wall of the Temple of Heaven in Beijing. A hemispherical enclosure will also guide whispering gallery waves. The waves carry the words so that others will be able to hear them from the opposite side of the gallery. The gallery may also be in the form
Art Gallery Building A bracketed iron cornice above has a round-gable center section inset with the building's name and date of construction. Atop the cornice line are rectangular urns with ball finials. Art Gallery Building The Art Gallery Building is a commercial building located at 156 South Washington Street in Constantine, Michigan. It was listed on the National Register of Historic Places in 1980. The building is particularly notable for its cast iron Italianate upper facade - the only such building in Constantine and perhaps the only one in the entire region. The Art Gallery Building was constructed in 1877 for George I.