This place is one of the most crowded place in Köln! absolutely packed with tourist from all over the world taking photos of relics and neoclassical architecture of the church. Good place to go. No admission fee or anything, its free. They do check your bags in case of explosives and etc.

Being in Cologne, we just had to visit the cathedral which dominates the cities skyline.

Firstly, entry was free, but we did pay to enter the Treasury to look at all the cathedral treasures. Entry price was reasonable, which was €12 for a family ticket.

There was another option of climbing the 500+ steps to the top of the cathedral, but we decided against this, as we had our little one with us. This came with a charge, but not sure how much this would have cost.

In all we spent approx 2.5hrs in the place. Would recommend on a damp & wet day.