Location. Set in a turn-of-the-century townhouse, the Hopper Hotel St Antonius is tucked down a quiet residential street in Cologne, Germany, 800 metres from the cathedral and Philharmonie concert hall. The hotel is within one kilometre of the Old Town and River Rhine. Cologne-Bonn Konrad Airport (CGN) is 20 kilometres away. Hotel Features. Built in 1905, the red-and- grey brick Hopper Hotel St Antonius fuses traditional architecture with modern facilities. The contemporary lobby is decked out...-...