cupola and a heavily ornamented façade in neo-Renaissance style; however, the stucco ornamentation proved inadequately weather-resistant and the building was re-faced with sandstone in plainer style in the early 1920s. Mosaics by Hermann Prell were added to the lunettes of the entrance hall in 1906, and carved reliefs by Friedrich Lommel to the new façade and the ceiling above the stairs in 1923–24. The rear of the building was destroyed by bombing in the Second World War; after the war the cupola, which had been damaged, and the decorations were removed, the steeply pitched roof and gables were replaced with a simpler top floor, and in 1961 a multi-storey carpark was built at the rear. The building has been a protected landmark since 1993. Commercial buildings Headquarters of Sparkasse Bremen bank (1881–82), in Italian Renaissance style with richly detailed façade and interior; destroyed in the Second World War. Norddeutscher Lloyd Headquarters (1901–10), a new headquarters occupying almost an entire quarter of the city, with the cornerstone of the final phase being laid in 1907 to celebrate the company's fiftieth anniversary. The Renaissance revival building was the largest in the city, with large gables and a bottle-shaped tower 75 metres tall. Covered in sandstone reliefs inside and out, it resembled a castle. The project coincided with an economic downturn and its costs caused problems for the company, but the building was finished on time. It was severely damaged in an air raid in October 1944; after the war the company was restarted in the cellar. The tower and gables were removed in 1953 and for a while a bierkeller operated in the cellar. In 1968 it was sold to Horten AG, who demolished it the next year to build a department store. Residences Knoop Castle (1873–75), a neo-Renaissance great house in the then village of Horn built for Daniel Diederich Knoop on the site of a late 18th-century residence surrounded by extensive gardens and parkland. It was the largest and most prestigious residence in the area, and the major work of Poppe's early period, influenced by French châteaux which he had seen on his travels. He also had French craftsmen execute the interior details. Arthur Fitger created several wall paintings for a later owner, Willi Rickmer Rickmers, who also enlarged the estate and renamed the house Kreyenhorst Castle. After Rickmers' death the grounds, reduced by road building, were abandoned and the