Exotic blooms flower alond the Black Sea's finest promenades. From Georgia to Bulgaria, remarkable stories come to light - gardens filed with Trees of Friendship in Sochi, the haunting Potemkin Steps in stately Odessa, Ottoman legacies in Constanza. Disparate civilizations have made their mark, be it around the Greek city of Tomis where Ovid lived, or in Bakhchisaray, whre the ruling Kahns held sway. As Discovery returns to the Bosphorus, a full day and night in former Constantinople lets you gaze at the treasures in the Topkapi Museum and barter under the painted vaoults of the Grand Bazaar.