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.

Nestled along the south bank of the Danube, this historical Austrian city bursts with charm. A favorite stop on European river cruises, the city's most famous attraction is Melk Abbey, which dates back to the 11th century. The original Benedictine structure was lost to fires and foreign invasion, then rebuilt during the 18th century in lavish Baroque style, including a library and inner church covered in magnificent frescoes and gilded fixtures.

Situated on the shore of Lake Titicaca, Puno is referred to as the folkloric capital of Peru due to its artistic and cultural expressions, particularly dance. Notable landmarks include the Andean baroque-style Puno Cathedral and the Yavari, a 19th-century steamship. Products created from alpaca, llama, or sheep wool are a signature of the area, as well as musical instruments like the siku.

Perth is pleasantly sited on the Swan and Canning rivers, with the cerulean Indian Ocean to the west and the ancient Darling Ranges to the east. It claims to be the sunniest state capital in Australia and the most isolated capital city in the world.

The second-biggest state in America, Texas is dotted with several appealing cities, including music and food-focused Austin, bustling Houston, arts and culture-rich Dallas-Fort Worth, and San Antonio, where the River Walk is not to be missed.