Shira Rubin reports on the Jewish tourists from around the world who flock to cities like Barcelona, Girona, Toledo and Seville.

This peacefully democratic nation wedged between Nicaragua to the north and Panama to the south welcomes three million visitors annually.

Serbia is a Slavic, Balkan nation from Belgrade south; Vojvodina, the territory north of the capital and part of Hungary until World War I, is a cauldron of Mitteleuropean diversity and resplendent, restored synagogues.

A summer cruise along the Rhine included visits to majestic medieval castles, wines tastings—and a somber, necessary tour of Holocaust-era and other Jewish sights.

Tour operators like Road Scholar, ElderTreks and Hadassah Missions are helping seniors redefine what senior travel is all about.