Khartoum, the capital of Sudan, sits where the Blue and White Nile rivers meet, creating a unique landscape of waterways, islands, and riverbanks.

A town on Cape Cod, Massachusetts. The pilgrims landed in 1620 at nearby Plymouth Rock.

Les Andelys, a picturesque town on the banks of the Seine in Normandy, France, is best known for its dramatic setting beneath the ruins of Château Gaillard. This medieval fortress, built in the 12th century by Richard the Lionheart, stands high on a chalk cliff overlooking the river, a reminder of the region’s turbulent past during the wars between England and France.

The skyline of Erfurt is shaped by dozens of churches, monasteries, and convents thrusting their pointed steeples upward to the sky. In the Middle Ages, Erfurt was known as "Thuringian Rome" because of its religious orders. The impressive twin churches on the Domberg (Cathedral Hill), the Roman Catholic St. Mary's Cathedral (14th century) and the Roman Catholic Parish church St. Severus with a flight of 70 outdoor steps leading from the Cathedral Square up the hill to the churches.

Blair Atholl, a village in the heart of Highland Perthshire, Scotland, is best known as the home of Blair Castle, a striking white-walled fortress that has stood for over seven centuries.