Guanajuato, a UNESCO World Heritage City nestled in the mountains of central Mexico, is a place where history is built into every hillside alley and underground tunnel. Today, visitors can still tour La Valenciana Mine, where centuries-old tunnels and original mining equipment offer a glimpse into the city's wealth-driven past. The nearby Templo de San Cayetano, built by mine owners in the mid-1700s, is a stunning example of baroque design, lined with gilded altars and intricate woodwork.

Pemba Island, located off the coast of Tanzania in the Indian Ocean, offers an idyllic escape for travelers seeking pristine natural beauty and cultural depth. Known as the "Green Island" for its lush, tropical landscapes, Pemba is a quieter, less-visited alternative to its famous neighbor Zanzibar. The island is a haven for those interested in diving and snorkeling, as its coral reefs teem with marine life, from colorful fish to graceful sea turtles.

The capital of Crete, Heraklion is a Greek port city and a popular stop on Mediterranean and Greek cruises. The city is an historical marvel, replete with archaeological wonders and remnants of the region's past. Highlights include the Heraklion Archaeological Museum, the Rocca a Mare Fortress, the Venetian Loggia, and just past the city limits, the Palace of Knossos.

Nestled in the scenic Borgarfjörður region of Iceland, Reykholt is a quaint village steeped in historical significance and natural beauty. While it is well known as a center of learning and culture during the medieval period, Reykholt is also famed for its stunning landscapes and geothermal activity. The town's nearby hot springs, including the historic Snorralaug, a medieval bathhouse, offer a unique opportunity to soak in waters that have been enjoyed for centuries.

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.