Answer: danube

AnswerCrossword Clue
DANUBE

Blue water?

DANUBE

Black Sea feeder

DANUBE

River to the Black Sea

DANUBE
Strauss inspiration
DANUBE
Belgrade's river
DANUBEVienna's river
DANUBEStrauss's blue subject
DANUBERiver in a Strauss waltz
DANUBERiver that begins in the Black Forest
DANUBEOrsova's river
DANUBEBudapest's river
DANUBEStrauss subject
DANUBERiver through four world capitals
DANUBEIt flows through four capitals
DANUBE"Internationalized" European river.
DANUBEBalkan river.
DANUBERiver immortalized by Strauss.
DANUBEVital European waterway.
DANUBEEurope's second largest river.
DANUBERiver through Budapest.
DANUBEWhere the Iron Gate is.
DANUBEBudapest's river.
DANUBEBelgrade's river.
DANUBEStrauss subject.
DANUBEDonau, Duna, Dunaj, etc.
DANUBERiver into the Black Sea.
DANUBERiver of Europe.
DANUBEEur. river
DANUBEStrauss waltz area
DANUBEStrauss's river
DANUBEInspiration for a Strauss
DANUBEStrauss's "The Blue ..."
DANUBEWaltzer's river
DANUBEIt rises in the Black Forest
DANUBEBratislava's river
DANUBEInn's end
DANUBEView from Budapest
DANUBEInspiration for Johann Strauss II
DANUBEUlm's river
DANUBELinz's river