By Rick Steves
Tribune Media Services
(Tribune Media Services) -- One of the things that charms me about traveling through Europe is its ethnic variety. Hop on a train and two hours later you step into a different culture, different language and different heritage.
As Europe united, I feared its ethnic diversity would be threatened. But I find just the opposite is happening. In Europe there are three loyalties: to your region, to your nation and to Europe.
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