Grand-Hornu is an old industrial mining complex in Hornu in the municipality of Boussu. It was built by Henri De Gorge between 1810 and 1830. It is a unique example of functional town-planning. Today it is owned by the province of Hainaut, which houses temporary exhibitions in the buildings. As one of four Major Mining Sites of Wallonia, UNESCO designated it a World Heritage Site in 2012References:
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.