It's an official presidential banquet palace, where President meets his guests. Originally
built as a Kyiv residence of Russian Imperior Katerine II (~1780's)
This bulding, located at the Volodymyrska hill was initially the Communist party headquarters
of Kiev City. But starting from 1991, when the Communist party was dismissed, it is occupied by the Ministry of
Foreign Affairs of Ukraine. You can still see Soviet symbolics on the top of the arc in the middle.