Barca d'Alva sits quietly along the Douro River, right at Portugal’s eastern border with Spain. Once the final stop on the historic Douro railway line, this riverside village remains relatively untouched by mass tourism. The surrounding landscape filled with terraced vineyards, olive groves, and almond trees form part of the UNESCO-listed Alto Douro Wine Region.

Narvik’s most striking features is its natural setting. The town sits between steep fjords and rugged mountains, making it one of the few places in Norway where visitors can ski with ocean views. Narvikfjellet, the local mountain resort, operates in both winter and summer. During the colder months, it's popular for alpine skiing and northern lights viewing; in summer, the gondola runs for hikers and photographers eager to take in views of the Ofotfjord from the summit.

Rhode Island may be the smallest state in the U.S., but it offers an outsized variety of experiences, from colonial history to coastline escapes. Founded in 1636 by Roger Williams as a haven for religious freedom, the state still reflects its independent spirit. In Providence, travelers can visit the John Brown House Museum to explore the city’s role in early American commerce, or walk Benefit Street, lined with preserved 18th- and 19th-century homes.

Khartoum, the capital of Sudan, sits where the Blue and White Nile rivers meet, creating a unique landscape of waterways, islands, and riverbanks.

Often called the Eternal City, Rome stands alone as Italy's most visited destination. The third most populated city in the European Union, Rome boasts ancient sites, yet has a modern flair — an exhilarating mix of the Old World and the new.