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.

Lukla, a mountain town perched at 2,860 meters in eastern Nepal, is best known as the gateway to the Everest region. The town is home to Tenzing-Hillary Airport, one of the world’s most thrilling landing strips, named after the legendary climbers who first reached Everest’s summit in 1953. The short, sloped runway hugs the mountain, offering a once-in-a-lifetime arrival that travelers remember long after their journey ends.

Located in the heart of Oklahoma, Tulsa offers much for the prospective traveler. Visit its many amusement parks, the zoo, and museums such as the Tulsa Air and Space Center, Mac's Antique Car Museum, Oklahoma Jazz Hall of Fame and the Harmon Science Center.

The city of Kelheim is located along the Danube River in the Bavarian region of Germany, southwest of Regensburg.

Denali National Park and Preserve is an adventurer’s paradise! This scenic landscape and arctic tundra in the Alaska wilderness is one of the country’s most beautiful national parks, and with over six millions acres of land, the park offers plenty of exhilarating activities, breathtaking hikes, and majestic sights, all of which will leave you in awe.