The Samogitian Art Museum (Žemaičiai Art Museum) operating in Mykolas Oginskis Palace since 1994 has collected and exhibited museum valuables reflecting the historical variety of the Samogitian region, and has preserved and cherished the traditions of Mykolas Oginskis Manor. Expositions invite the visitors to learn about the pieces of the 20th – 21st century professional fine arts which were granted to the museum by the Samogitian artists living in Lithuania and abroad.
Although the governors of Plungė manor kept changing from the 16th century, this landholding remained an important residence of aristocrats, clergymen, talented culture and art creators until the early 20th century. Plungė and all landholdings were sold to count Platon Zubov in 1806. In 1873, the Zubov family sold the manor to the duke Mykolas Oginskis. The duke built the current-day manor in the northern part of the park. The building was designed by a German architect Karl Lorenz. The manor was solemnly blessed in 1879. The central building was built in a neo-renaissance style which was in fashion at the time. From then on Plungė Manor had its heyday.