Mobilia museum specializes in cars and road traffic. The exhibitions illustrate the history of the field in Finland, where long distances have always given both roads and vehicles particular importance. The exhibitions change annually, focusing on different sub-themes of automobile traffic. The exhibitions are planned with foresight; the exact subjects are known years ahead. A wide collection of photos and other objects is also on display in Mobilia.
At the moment the permanent exhibition includes 26 classic cars. There is also the Rally Hall of Fame, an exhibition that depicts international rally stars and rally cars.
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.