Quetzaltenango, often called Xela by locals, is Guatemala’s second-largest city and a hub of indigenous culture, colonial history, and highland landscapes. Surrounded by volcanoes, including the towering Santa María, the city sits at over 7,600 feet above sea level, giving it a crisp mountain climate that contrasts with the country’s tropical lowlands.

Addis Ababa is the capital of Ethiopia and a highland city set at the foot of the Entoto Mountains. Its elevated setting gives the city a relatively cool climate compared with much of the country, while broad avenues, busy neighborhoods, green hills, and expanding modern districts create a varied urban landscape. Addis Ababa is also the headquarters of the African Union and hosts numerous international organizations, giving it an important diplomatic role across the continent.

Vilshofen is a town in Lower Bavaria, Germany, located where the Vils River meets the Danube. The town is known for its riverside setting, colorful historic center, and role as a regional transportation point along the Danube corridor.

A major port city on the River Scheldt, Antwerp, Belgium, is a cultural, historical, and commercial hub and the country's most populous city. Known as the "diamond capital of the world," Antwerp is renowned for its cut diamonds.

Qingdao, also Tsingtao or Ch'ing-tao, Shandong Province, eastern China. It is a major naval base, an industrial center, and a port on the Yellow Sea at the entrance to sheltered Jiaozhou Bay. The port, which rarely freezes over, serves the industrialized northern China Plain and was expanded in 1976 to include an oil terminal for large tankers on Huang Island. The leading manufactures of the city include textiles, railroad equipment, rubber goods, fertilizer, and chemicals.