Technically, the Inchindown oil tanks in Invergordon, Scotland, have the world's longest reverberation, but that makes a much worse title. We tested them with a loud noise and some very sensitive microphones.
Matt's musical experiments: https://www.youtube.com/watch?v=CzMVJkTjKNc
Behind the scenes on the Matt and Tom channel: https://www.youtube.com/watch?v=e4qplnaPjbk
Thanks to Allan, Alan and Preston for all their help on the day, and to landowners the Bannerman Group for allowing us access!
Edited by Michelle Martin, @mrsmmartin
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