State L.N. Tolstoy’s Yasnaya Polyana Estate Museum
One is expected to know where this is, and the clue is not in the caption but in the separate line about where and when the card was produced: Moscow, 1988. (That’s just a clue.) But the card was mailed in 2013 from Belarus, with a Belarusian “M” stamp and full Minsk postmark. Grade: 3