Not sure whether this counts, but is it unusual that a polling station doubles as the venue for the count afterwards? If that is the case, then St John's Hall in Penzance, my polling station for the last few elections, is one such for the St Ives constituency. It's certainly an imposing building, grand even, Grade II listed and built in the 19th century. The polling station itself is tiny and quite separate from the large area where the counting takes place. Overnight counting is out of the question because the Isles of Scilly form part of the constituency and those voting boxes have to be transported by air in daylight hours. In consequence, with the 2019 election taking place in December, counting only got underway about midday on the Friday, as no boxes can be opened until they're all there, and it was the last result to be declared, I think.