An official from Slavkov u Brna, a town east of Brno in the South Moravian Region of the Czech Republic. I don't often received officials from Czech Republic, in 6 years of postcrossing, this is my 5th card from there :o
The card shows the Baroque Slavkov Palace (Austerlitz).
The palace has 115 rooms and an impressive garden in the French style. The Palace was designed by Italian architect Domenico Martinelli. In its historic salon, an armistice was signed between Austria and France after the battle of Austerlitz on 2 December, 1805. There is a small historic museum (only in Czech) and a multimedia presentation about the battle. - in: wikipedia