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
Trail of the Whispering Giants Peter Wolf Toth began this project in 1972. Schumaker has documented his information on the WEB site Peter Wolf Toth which has the most current information on the "Whispering Giants" and messages from the artist himself. The 74 "Whispering Giants" range from in height, and all resemble natives of the region in which they are located. Toth always donates the "Whispering Giant" he creates to the town he carved it in, and never charges a fee for his time. He does require that the raw materials (a large log between in diameter) be provided, as well as lodging and living