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
London Guarantee Building on April 16, 1996. The London Guarantee & Accident Building was designed by Chicago architect Alfred S. Alschuler and completed in 1923 for the London Guarantee & Accident Company, an insurance firm that was then its principal occupant. The top of the building is noted to resemble the Choragic Monument of Lysicrates in Athens, but it was modeled after the Stockholm Stadshus. It is located in the Michigan–Wacker Historic District. The building stands on the property formerly occupied by the Hoyt Building from 1872 until 1921. The LondonHouse Hotel name is an homage to the first owner of the 1923