River cruises in Europe are all the rage these days. River cruises are, in fact, one of the fastest-growing segments of the travel industry. The popularity of cruising the continent’s scenic rivers shouldn’t be surprising: Europe has more navigable waterways than any other region — and what might be the most diverse cultures and visitor attractions along its riverbanks.adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-TRAVEL","nativepaywallcategory" : "NATIVE_PREM-TRAVEL"};