I've also got this card today. It's an ukrainian card sent as an official from the Netherlands.
These building are the Uspenskyy Cathedral, on the left side, and the Refectory Church, on the right side, both part of the cave monastery of Kiev Pechersk Lavra.
NL-2327551, sent by Kseniia.
The Uspenskyy Cathedral was built in the XI century. It was blown up in 1941 during World War II and only rebuilt in 1999.
The Refectory Church is a refectory and an adjoining church of Saint Anthony and Theodosius. In the refectory, the Lavra monks had their meals. The building was constructed in 1893-1895 at a time when more than a thousand monks were living within the monastery.