Public transit is supposed to be pretty good in Cologne so I got a 1-day kolncard (€9) from the tourist info office across from the cathedral entrance for my day 2. My first destination is the Chocolate Museum. Google map tells me I should take Bus #133 and it seemed to be a pretty straightforward ride. However, it took me 20 mins to find the bus stop of #133 at Breslauer Platz, which is a huge station with trams, trains, buses, subways all converge here. I struggled to find someone on the street who could understand English and help me with the direction. Eventually I found my way - most bus stops are actually located behind Gunnewig Kommerz Hotel and the bus stop for #133 is actually on Goldbasse road.