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.

Geneva is a cosmopolitan metropolis proud of her traditions. It is the international meeting place of many worldwide organizations including the United Nations and W.H.O. The symbol of the city, the Jet D'Eau is located on the picturesque lake which is surrounded by the splendid gardens and parks. The elegant city has an astonishing variety of boutiques and department stores filled with every imaginable item.

One of San Cristobal Island's most popular visitor sites is Cerro Brujo, with its expansive white sand beach and a lagoon that locals once used as a salt mine but now offers excellent snorkeling opportunities. Another must-see is Kicker Rock, a fascinating rock formation that looks like a boot from one angle (hence its English name) and like a sleeping lion from another (thus its Spanish name, Roca León Dormido).

Hidden in the northern region of Costa Rica, the Celeste River (Río Celeste) winds through Tenorio Volcano National Park with a color so vivid it seems unreal. The river’s striking turquoise hue is caused by a natural chemical reaction between two mineral-rich streams, Quebrada Agria and Río Buena Vista, which merge at a point known as "El Teñidero." This one-of-a-kind phenomenon creates the illusion that the water has been dyed blue, even though no pigments are present.

Shopping, historic temples, lush green spaces and exceptional dining are all part of Tokyo, the capital of Japan. This spectacular, highly populated metropolis holds unlimited options for tourists.