Ostrów Lednicki is an island on Lake Lednica with the remains of Mieszko I’s stronghold, considered one of the probable sites of the baptism of Poland in 966. You reach the island by ferry and, on site, admire the relics of the palatium and baptistery.
It is one of the most important places on the map of the beginnings of Polish statehood. The trip easily combines with the nearby Wielkopolska Ethnographic Park in Dziekanowice.