An industrial center and the island's chief Caribbean port. Tourism, sugar refining, and distilling are important. Founded in the early 16th century, it is one of the oldest cities in the Americas.

Regensburg, Germany’s medieval gem, will transport you to a bygone era. The site of both Celtic and Roman settlements, Regensburg flourished in the Middle Ages.

Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

Brasília may be a World Heritage Site, but it is only of interest to town planning and architecture students, and those keen to witness the folly of man on a metropolitan scale. It must have looked good on paper, and still looks good in photos, but in the flesh, forget it. Designed by architect Oscar Niemeyer, urban planner Lucio Costa, and landscape architect Burle Marx, the city was built in an incredible three years between 1957 and 1960.

On the Canadian border where Lake Huron and Lake Superior meet, a canal built in 1895 still is used to have boats bypass the rapids of the St. Mary's river.

Augsburg was founded in 15 BC under the rule of the Roman emperor Augustus. For 400 years the city was the seat of a provincial government of the Roman empire. Its ideal location made it a crossroad of all important routes to the south. An advantage from which the powerful merchants and bankers, the Fugger family and the seafaring Welsers, likewise profited. They elevated Augsburg to rank among the world's most powerful cities. Kings and emperors were frequent guests here.