The hill fort is located to the rock hill with high cliffs in Pisamalahti. The hill fort rises about 55 meters above Enovesi lake.
First record of the fort dates back to the year 1561, but it was probably built in the Iron or Middle Ages. According one hypothesis it was built by Carelian people against conquerors from Tavastia (Häme) historical province. There is a 120 meters long and 2-3 meters high stone wall on the top of the hill.
Pisamalahti hill fort is one of the most valuable ancient fortresses in Finland. The hill and the surrounding lake landscape are popular tourist attraction in the Sulkava area.
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.