A few weeks ago we traveled to Cologne. Cologne is Germany's 4th largest city and is famous for it's huge cathedral called the Dom, We took a ferry tour down the rhine river where we learned a lot of very interesting things about this ancient city that was founded by the Romans in the first century AD. You can read more about the history of the Dom here.
A monk was playing this organ the whole time we were there.
They say that this golden box contains the bones of the three wise men.
The details both inside and outside were just spectacular.
Standing outside the cathedral doors
On the river tour