Midway between Salzburg and Vienna, Linz boasts beautiful Baroque buildings, including Old Town Hall and the Old Cathedral, Alter Dom.

A series of gates surrounds the two centers of ancient, medieval Fez (sometimes spelled Fes). The principal axes link the center to the gates and a street surrounds the heart of the old city. The Kairouan quarter, which is longer, is crossed by an artery. Narrow, tortuous pedestrian streets, covered passages, stairs and numerous dead-ends make up the dense layout with few urban squares.

Somalia, located on the Horn of Africa, is a land defined by its coastline, culture, and long history as a crossroads of trade. With the Indian Ocean and Gulf of Aden shaping much of its identity, Somalia has one of the longest coastlines in Africa, stretching over 1,800 miles.

St. George’s, the capital of Grenada, is a picturesque harbor town nestled within the rim of an extinct volcano. Its horseshoe-shaped Carenage, lined with pastel-colored colonial buildings, offers a postcard-perfect introduction to the island.

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.