10. Kutná Hora, Czech Republic
History takes center stage in Kutná Hora. This small Czech town began as a medieval mining village, and still retains much of its original architecture. Stop by St. Barbara’s Cathedral for an up-close look at Gothic sculpture and panoramic views of the city. More morbid-minded visitors will enjoy the Sedlec Ossuary, or “bone church”: One of Czech Republic’s most famous sights, this small chapel is decorated from floor to ceiling in human bones. We suggest visiting Kutná Hora at the beginning of June for the Royal Silver Festival. The celebration showcases the town’s silver-mining history and includes dancing, crafts, and fencing. When it comes to hidden tourist gems in Eastern Europe, this is the perfect place to start.