Coursing through 10 countries, the Danube is the second-longest river in Europe. This waterway, lined with fortresses and castles, rises in Germany's Black Forest and runs for 1,770 miles to the Black Sea. The Danube is an essential commercial thoroughfare for central and southeastern Europe, and several river cruise companies sail vessels on it year-round. Destinations along this river include Vienna, Budapest, Passau and Bratislava.

Named after the Italian city of Genoa, Genovesa Island is a dormant volcano in the Galápagos Islands. Its nickname, Bird Island, stems from the large and diverse bird population including storm petrels, red-footed boobies, swallow-tailed gulls and more.

Sasebo is a port city in Nagasaki Prefecture on the northwestern coast of Kyushu, shaped by its sheltered harbor, islands, and long maritime connections. Its identity reflects both Japanese and international influences, with naval facilities, American cultural connections, and a busy waterfront existing alongside traditional neighborhoods. The city is also a gateway to the Kujukushima area, a coastal landscape known for its many small islands and winding shorelines.

Ruhengeri, officially known as Musanze, lies in northern Rwanda at the foothills of the Virunga Mountains. The town has long served as a gateway between Rwanda and neighboring Uganda and the Democratic Republic of the Congo, giving it both strategic and cultural importance.

Founded in 1721 by mainland Chinese, it is the third largest city in Taiwan. Occupied by Japanese from 1895-1945, it totally leveled and rebuilt. With many museums, gardens and universities, it is considered the cultural center of Taiwan.