Secret Berlin

An amphitheatre where animals were dissected, a sand dune hidden in a town centre, the oldest forgotten remains of the Berlin Wall in Pankow, the outstanding interior of an Expressionist church, a building which is a copy of the Farnese Palace in Rome, the remains of a camp for those in transit between the West and East, a concrete construction weighing 12,000 tonnes built to measure the solidity of the ground, a shining performance in the chapel of a cemetery, an unknown masterpiece of brutalist architecture, the man-made hill where the aviation pioneer Otto Lilienthal did his first test flights, a street that closes from 10pm to 6am to protect beavers ...