Billings, Montana sits on the edge of the vast plains and at the base of ancient sandstone cliffs known as the Rimrocks. These formations frame the city and provide miles of scenic overlooks, hiking trails, and even fossil beds. From Swords Park, visitors can walk or bike along the paved trail that follows the rim’s edge, offering sweeping views of downtown, the Yellowstone River, and distant snowcapped peaks.

Ulm, Germany, a picturesque city on the banks of the Danube River, offers a rich tapestry of history and modern charm. Dominating its skyline is the Ulm Minster, home to the tallest church steeple in the world at 161.5 meters (530 feet). This Gothic masterpiece invites visitors to climb its 768 steps for a breathtaking panoramic view of the city and the surrounding countryside.

Eminently livable and a pleasure to visit, Zurich is Switzerland's largest and most affluent city. This Central European metropolis is an engine of finance and banking, and has much to offer to visitors. There are numerous art museums, fine chocolate stores, and boundless luxury shopping opportunities.

Located in Oaxaca, Mexico, Huatulco is famous for its beaches and the sparkling blue water of surrounding bays.

Kalmar Union, combination of the crowns of Denmark, Sweden, and Norway, effected at Kalmar, Sweden, by Margaret I in 1397. Because all three crowns were elective, the union could not be maintained by inheritance. Margaret's successors controlled Sweden intermittently until Gustavus I of Sweden dissolved the union (1523). Norway became independent in 1814.