Greece Redcar, Yorkshire Seaham, County Durham Selsey, Sussex – converted into a residence Sunderland, at Namey Hill (OS grid reference NZ38945960) Warden Point, Isle of Sheppey, Kent – the Warden Point mirror, sited on a cliff-top, fell onto the beach below ca 1978-9 Modern acoustic mirrors built for entertainment Pennypot, Royal Military Canal Wat Tyler country park, near Pitsea, Essex – modern sculpture in the form of functional sonic mirrors The Brickyard (NC State) – North Carolina State University campus Discovery Green in downtown Houston has a sculpture made of limestone called the Listening Vessels. Very Large Array Visitor's Center has a 'whispering gallery' pair of dishes See also Acoustic location Sound ranging, for the artillery use Parabolic microphone Whispering gallery Whispering-gallery wave References Further reading External links Acoustic mirrors in Britain Military acoustic locators White Cliffs Underground further details of variety of East Kent defences Visiting information for UK (and Maltese) sound mirrors Acoustics Anti-aircraft warfare Warning systems