- Istanbul
Begin with a visit to the 6th-century Basilica Cistern, a remarkable underground site with 336 columns. Make sure to look for the Medusa heads.
Next, head to the surface for a Bosphorus cruise. Sail between Europe and Asia, and take in views of Istanbul's famous landmarks. See the Dolmabahce Palace, the Bosphorus Bridge, and various historic forts and palaces along the waterfront. The cruise provides a relaxing way to experience the city's rich history and culture.