On the Black Sea, this historic ancient city (pop. 189,000) is well worth a three-night visit. Among the attractions is the 13th-century Aya Sophia Church (now a museum), one of the best-preserved Byzantine monuments in the country. Also see the 16th-century Gulbahar Hatun Cami (mosque) and the citadel. About 30 mi/48 km southwest is an impressive Byzantine Virgin built into a cliff at Sumela Monastery at an elevation of 3,900 ft/1,189 m. While in the area, take a day drive south through the stunning Zigana Gecidi Pass to see the varied scenery--we enjoyed passing shepherds with their flocks in the fields. 400 mi/645 km east-northeast of Ankara.