Many of you may know about the legendary Danube River. It connects cities like Vienna and Budapest. But a journey along the Lower Danube reveals far more than scenic river cruising through the usual destination suspects — it’s a passage through history, culture, and geopolitical complexity. In this special report, from the MS Riviera Radiance, correspondent Kerry Sanders explores five countries shaped by the former Soviet bloc, from Romania’s monumental past to the biodiversity of the Danube Delta, and yes, even Ukraine — and life along the river today.