Bremen Town hall was built between 1405 and 1410 and the Weser Renaissance facade added in the 17th century. The Town Hall and the statue of Roland on the marketplace are outstanding representations of civic autonomy and sovereignty, as these developed in the Holy Roman Empire in Europe. The old town hall was built in the Gothic style in the early 15th century, after Bremen joined the Hanseatic League. The building was renovated in the so-called Weser Renaissance style in the early 17th century. A new town hall was built next to the old one in the early 20th century as part of an ensemble that survived bombardment during the Second World War.
The stone statue of Roland was initially erected in 1404 in representation of the rights and privileges of the free and imperial city of Bremen. The statue of Roland is associated with the Margrave of Brittany, a paladin of Charlemagne.References:
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.