Vienna has a long memory. Once the capital of the Habsburg Empire, the city still carries signs of its imperial past in its palaces, concert halls, and wide boulevards. Visitors can walk through the Hofburg complex, where emperors once ruled, or tour the opulent rooms of Schönbrunn Palace, which features 1,441 rooms and a maze in its gardens. But Vienna’s many historic buildings now house contemporary art museums, cafés, and institutions that reflect the city’s modern identity.

Arequipa, known as the "White City," is built from sillar, a pale volcanic stone that glows in the sunlight. This architectural detail gives the historic center its striking appearance and has earned it recognition as a UNESCO World Heritage Site. Towering above the city is the perfectly symmetrical Misti Volcano, which, along with two neighboring peaks, forms a dramatic backdrop.

Krakow is a diverse and culturally rich city. Once thought of as cold and desolate, today's visitors know an entirely different place.

Pisa, Italy, is more than just its world-famous Leaning Tower; it's a city where history, art, and culture intersect to create a fascinating experience for visitors. The Leaning Tower, part of the Piazza dei Miracoli or Square of Miracles, is an architectural wonder that draws millions each year. Built as a bell tower for the adjacent Pisa Cathedral, its unintended tilt has become a global icon.

The United Arab Emirates rolls history and invention into a seamless experience. In Abu Dhabi, the Sheikh Zayed Grand Mosque stands out with its reflective pools, marble columns inlaid with floral patterns, and the world’s largest hand-knotted carpet beneath domes that glow by night. On Saadiyat Island, the Louvre Abu Dhabi shelters art that spans civilizations, all beneath a dome designed to scatter sunlight like palm fronds.