The Kölner Dom is the geographical, spiritual and cultural heart of Cologne. It is the Mount Everest of cathedrals, with numerous treasures and magnificent art works, leaving all visitors in awe.
So much history has struck this site: under Napoleon it was a prison and a even horse stable! The cathedral is a treasure within itself. if you only see it once in real life, you can appreciate its striking beauty. When the light filters through the cathedral at the right time of day, it will leave you stunned. The Domschatzkammer (room of treasures) has many historical artifacts, so also worth a look! Although many tourists flood the Dom, it is definitely worth the visit!