The hill fort in Rapola Ridge the largest ancient fort in Finland. As is the case with most hill forts in the Baltic area not much is known about its exact origins or purposes. One postulation is that it was built by the inhabitants in their struggles against invading Novgorodians and Swedes. According to excavations, the fort seems to have been in operation at least during the 13th and 15th centuries. Parts of it may be even earlier, since the area has been inhabited already in the 7th century. The medieval Sääksmäki church is located nearby, and the oldest signs of farming in Finland (dated 200 BCE) is also found there.
The fort was partly constructed on a natural hill that was eventually entirely fortified. The fort was 400 meters long and 200 meters wide. Remains of the earth walls are still visible. There is a guided path through the hill fort beginning at the car park of Voipaala manor.
The Historic Sausage Kitchen of Regensburg (Wurstküche) is notable as perhaps the oldest continuously open public restaurant in the world. In 1135 a building was erected as the construction office for the Regensburg stone bridge. When the bridge was finished in 1146 AD, the building became a restaurant named Garkueche auf dem Kranchen ("cookshop near the crane") as it was situated near the then river port. Dockers, sailors and the staff of the nearby St. Peter cathedral workshop were the regulars for the centuries to come. The present building at this location dates from the 17th century, but archaeological evidence has confirmed the existence of a previous building from the 12th century with about the same dimensions.
Until ca. AD 1800, the specialty was boiled meat, but when the family who currently own the restaurant took over in 1806, charcoal grilled sausages were introduced as the main dish offered. The kitchen still operates today and serves 6,000 sausages to guests daily.