less synonymous with the location of the old town. Gallen are due to radioactive products of radon gas being washed to the ground during heavy storms, but does not explain where the sufficient quantities of radon gas and its products to account for the anomaly would come from. Limmat, Zürich 2004, isbn. 37 The well known. The Stadtlounge was designed by Pipilotti Rist "St Gallen 2013 project underway". Biking routes are generally marked with red and white signs and the yellow lanes are exclusively meant for the bikers. In addition Zürich is the world's largest gold trading centre. Guild houses The Guild houses (German: Zunfthaus ) are located along the Limmat (downstream from the Grossmünster Meisen (also a porcelain and fayence museum Rüden, Haue, Saffran, Schneidern, Schmiden, Zimmerleuten, and some more.