A historic capital in the heart of the Balkans, Belgrade will absolutely charm you with its picturesque cafés, striking religious monuments, riveting museums, and thriving nightlife.

A charming city nestled on the banks of the Rhine, Mainz, Germany lies southwest of Frankfurt and is replete with historic buildings and famous museums. The city's Altstadt district meets the river's edge and boasts a variety of beautiful and fascinating landmarks.

Portland, Oregon, is a city where natural beauty and urban innovation coexist harmoniously. Nestled between the Columbia and Willamette Rivers and framed by volcanic mountains, Portland offers an array of outdoor adventures alongside its renowned cultural scene. Visitors can explore the lush expanses of Forest Park, one of the largest urban forests in the U.S., or take a leisurely stroll through the Portland Japanese Garden, which showcases exquisite traditional Japanese landscape design.

Replete with windmills and old-world charm, the village of Kinderdijk lies east of Rotterdam on the Lek River and is a popular stop for European river cruises. Home to the largest concentration of old windmills in the Netherlands, Kinderdijk was designated a UNESCO World Heritage Site in 1997.

Karatu, located in northern Tanzania between Lake Manyara and the Ngorongoro Crater, is more than just a stopover for safari-goers. This highland town, surrounded by rolling farmland and volcanic hills, offers travelers a closer look at daily life in the region. The area is home to the Iraqw people, known for their terraced farming, traditional homesteads, and unique language unrelated to most other East African tongues.