Alberobello in southern Italy’s Puglia region captures the imagination with its distinctive trulli houses. These structures were built using a dry-stone technique passed down over centuries, without mortar or cement, and their unique form comes from layer upon layer of limestone nestled from nearby fields. Alberobello’s trulli are so remarkable that in 1996 the historic center was inscribed as a UNESCO World Heritage Site, where more than 1,600 of these buildings still stand.

Greenville, South Carolina sits at the foothills of the Blue Ridge Mountains and has grown from a former textile center into one of the Southeast’s most appealing small cities.

Salamanca, often called the “Golden City” for the warm glow of its sandstone buildings, is a place where centuries of stories are etched into every wall. Visit its historic center to wander through cobbled streets lined with architectural marvels. The University of Salamanca, founded in 1218, is one of the oldest in Europe and still buzzes with student life.

Istanbul is a city built on layers of empire. Spanning two continents, it was once the capital of three major empires: Roman, Byzantine, and Ottoman. Visitors walking through the Sultanahmet district can witness this timeline firsthand, from the Roman-era Hippodrome to the Byzantine mosaics of Hagia Sophia, and the towering minarets of the Blue Mosque. At nearby Topkapi Palace, rooms still display the jeweled swords, ceremonial robes, and handwritten Qurans once used by Ottoman sultans.

Busan is located on the southeastern coast of South Korea and is an exciting port city famous for its beaches, including Haeundae Beach, Gwangalli Beach, and Dadaepo Beach. From bustling marketplaces, to Buddhist temples, to Korean War memorials, Busan is brimming with culture and history and offers plenty to explore on your next visit to South Korea.