By Gary Walther

The Hotel Detective maintains a short list of top three-night cities, smaller cities, mostly in Europe, and so named because they can be taken in in that time.

They share three qualities: easily mastered, culturally rich, and with a well-preserved historic core, often ringed by the original walls or remnants thereof.

This year Cologne pushed Modena out of the number one spot.

The city, when it’s mentioned, often seems an adjunct of Cologne Cathedral, which took some six centuries to complete, as work proceeded intermittently.

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