The year 2017 was the best in Cologne’s tourism history, with a total of 3.59m arriving guests and 6.24m overnight stays. According to official registration records, there were 7.3 per cent more arrivals and 8.1 per cent more overnight stays in hotels compared to the previous year. The increases for visitors from abroad were even greater, with an 8.9 per cent increase of arrivals and a 9.2 per cent increase of overnight stays. A new study published by the tourism consulting...