Colonia del Sacramento is where time lingers. Founded in 1680 by the Portuguese and later contested by the Spanish, the town’s past is etched into its cobblestone streets and weathered facades. The Barrio Histórico, a UNESCO World Heritage Site, is compact enough to walk in an afternoon yet layered with centuries of stories. Visitors can explore remnants of the original city walls and climb the iconic lighthouse for sweeping views of the Río de la Plata.

Namibia, in southwestern Africa, is a land of dramatic landscapes and striking contrasts. From the towering sand dunes of the Namib Desert to the rugged mountains and deep canyons of Damaraland, the country offers some of the continent’s most unique scenery.

Monteverde, which means "green mountain," is nestled high in the Tilarán mountain range of Costa Rica. The Cloud Forest is the home to a myriad of plants, mammals, insects, reptiles, and over 400 species of exotic birds.

Padua, a hidden gem in Northern Italy’s Veneto region, is a city where medieval splendor meets a vibrant modern atmosphere. Known for its ancient university, founded in 1222, Padua is one of the oldest and most prestigious in the world, having nurtured the minds of great scholars like Galileo Galilei.

Nicaragua is the largest republic of Central America. The capital and largest city is Managua. Nicaragua has highlands; several mountain ranges; and a great basin, or depression, containing two lakes, Lake Nicaragua, the largest in Central America, and Lake Managua. The two are connected by the Tipitapa River.