57°44′26″N 4°12′17″W / 57.7405°N 4.2047°W
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The Inchindown oil tanks is a disused underground oil depot in Invergordon, Ross-shire, Scotland.[1] The tanks hold the record for the longest reverberation in any man-made structure, surpassing the Hamilton Mausoleum in 2014.[2]
- ^ McKenzie, Steven (8 August 2011). "Return to Highlands' Inchindown secret tunnels". BBC Scotland. British Broadcasting Corporation. Retrieved 18 July 2014.
- ^ Adam Sherwin (16 January 2014). "Now we've heard it all: Acoustic scientists shatter the world record for longest ever echo". The Independent. Independent Print Limited. Retrieved 18 July 2014.