This huge baroque palace houses the Czech Ministry of Foreign Affairs today. Part of the ground floor is used for exhibitions and various events.
Open to the public only for certain events.
Wikipedia https://fr.wikipedia.org/wiki/Palais_Toscan
Address Loretánské náměstí 5, 118 00 Prague, Czech Republic
Coordinates 50°5'21.421" N 14°23'42.204" E