Montagu House, Bloomsbury
London Borough of Camden, United Kingdom · built 1675
Montagu House (sometimes spelled "Montague") was a late 17th-century mansion in Great Russell Street in the Bloomsbury district of London, which became the first home of the British Museum. The first house on the site was destroyed by fire in 1686. The rebuilt house was sold to the British Museum in 1759, and demolished in the 1840s to make way for the present larger building.
Country house data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).