Though the euro is still flying high against the dollar, a hop across the pond isn't out of the question. Think beyond London and Paris and consider options in Eastern Europe to get the most mileage out of the dollar. Poland is still affordable and a great option for older kids who might be ready to explore the area's history, says Ellison Poe, of Poe Travel in Little Rock, Ark. "Krakow is fantastic," said Ms. Poe, who is traveling to Poland this winter with her family. "It's one of the most beautifully preserved cities and is not on the beaten track yet. Krakow will be like Prague in a few years." For kids, Ms. Poe recommends a visit to the medieval Wieliczka Salt Mine, where there are guided tours of the underground labyrinth of caverns, lakes, centuries-old carvings and even several chapels carved out of the salt.