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
Guildhall Art Gallery lay derelict for hundreds of years. In the 11th century the area was reoccupied and by the 12th century the first Guildhall was built next to it. Guildhall Art Gallery The Guildhall Art Gallery houses the art collection of the City of London, England. It occupies a building that was completed in 1999 to replace an earlier building destroyed in The Blitz in 1941. It is a stone building in a semi-gothic style intended to be sympathetic to the historic Guildhall, which is adjacent and to which it is connected internally. The gallery was originally built in 1885 to house