The Detmold Open-air Museum (LWL-Freilichtmuseum Detmold) was founded, together with the Hagen Open-air Museum, in 1960, and was first opened to the public in the early 1970s. Over 100 historic, rural buildings were transported and reconstructed from across the state, including schools, farmhouses, thatched cottages, and windmills. The large bucolic fields and ponds are available for horse-drawn carriage rides, walking tours, and picnicking. The museum also hosts special exhibitions and interactive craft demonstrations, such as blacksmithing and pottery-making. It is open in summer season.
References: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.