Suzhou, often referred to as the "Venice of the East," enchants visitors with its labyrinth of canals, classical gardens, and rich silk heritage. Located in eastern China's Jiangsu Province, Suzhou is famed for its beautifully preserved classical Chinese gardens, which are UNESCO World Heritage Sites.

Stromboli is a small volcanic island in the Tyrrhenian Sea, just off the north coast of Sicily. Referred to by some as the "Lighthouse of the Mediterranean," Stromboli is in a constant state of mild volcanic activity, so don't venture out on a hike without an experienced guide.

Chios lies in the northeastern Aegean, close enough to the Turkish coast that the mainland feels present in daily life.

In Edinburgh, an ancient fortress looms, the hills are steep, and travelers delight in the hidden charms of the Old Town and New Town. Hike to find spectacular views on Arthur's Seat, shop the downhill streets of the Royal Mile, and visit Edinburgh Castle, an imposing royal fortress that defines this city's skyline.

Seen from the train, Durham presents a magnificent sight, with cathedral and castle perched atop a bluff enclosed by a loop of the River Wera, and linked to the suburbs by a series of sturdy bridges.