Today we travel paved roads using good maps or a GPS system to find the way. Imagine sailing uncharted waters or journeying through trackless deserts without such help. In the northern hemisphere one of the greatest of navigational aids has for nearly two thousand years been the north star Polaris.
Avatar: HOHENZOLLERNBRUECKE Cologne with CATHEDRAL and LUDWIG MUSEUM. The Bridge a symbol of how Germany was rebuilt after WWII, it was left in ruins, the Cathedral with roots in the 13th century represents the country's history, Museum of Modern Art the present day.