The Hossa Värikallio rock paintings are amongst the largest prehistoric rock paintings in Finland. The pictures on the rock wall rising from Lake Somerjärvi were painted in the Stone Age, i.e. about 3,500 - 4,500 years ago.
Paintings were painted from a boat or when standing on the ice of the lake. On the surface of the rock wall there are 61 separate figures depicting scenes of hunting and shamanic rituals. The paintings have probably been used for marking a route or describing events.
Värikallio is accessible all year round. In summer there is a trail leading to the paintings, and an observation platform has been built in front of the cliffs. In winter there is a skiing trail to the cliffs and a snowmobile trail nearby. The access to the paintings is free-of-charge. Theme guiding for groups is subject to a charge.
The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.