Ontario is Canada's most densely populated province, harboring such cosmopolitan cities as Toronto and Ottawa. Millions of tourists come into Ontario every year, and industry and farming are the chief industries along the Great Lakes.

Lake Powell, stretching across the Utah-Arizona border, is one of the largest manmade reservoirs in the United States. Formed by the flooding of Glen Canyon after the completion of the Glen Canyon Dam in 1963, it covers over 180 miles in length and contains nearly 2,000 miles of shoreline, more than the entire West Coast of the U.S. Despite its modern origins, the area has long been home to the Ancestral Puebloans and later Navajo communities.

This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers.

Dambulla, situated in the Central Province of Sri Lanka, is best known for its rock temple complex that has been in use for over two thousand years. The Dambulla Cave Temple, also called the Golden Temple of Dambulla, is made up of five caves carved into a granite outcrop, filled with over 150 Buddha statues and intricate wall paintings. These caves were first used by King Valagamba in the 1st century BCE as a refuge during exile, and later transformed into a sacred site.

Aarhus, Denmark's second-largest city, offers a captivating blend of historical charm and modern vibrancy. Founded in the 8th century, Aarhus boasts a rich history that visitors can explore at the Old Town Museum, an open-air museum that recreates Danish life through the ages with its historical buildings and interactive exhibits. The city's medieval roots are also visible in the well-preserved Aarhus Cathedral.