Ξενοδοχεία κοντά σε Καθεδρικός Ναός Κολωνίας, Κολωνία

Started in 1248, this monster cathedral took over six centuries to complete – but unusually, later architects stuck to the original Gothic plans. You could say that it was worth the wait, though – Cologne Cathedral is now Germany’s most visited landmark, leaving Berlin and Munich in its dust.