| Hint | Answer |
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| Due to its location on the mineral-rich Witwatersrand, this city facilitates a large-scale gold and diamond trade | |
| This city is home to the Red Cross and many UN agencies, and lent its name to the conventions that govern the humanitarian aspects of war | |
| This sprawling US city is home to the world's busiest airport | |
| An ancient centre for arts, learning, and philosophy, this city is widely considered the cradle of Western civilization and the birthplace of democracy | |
| Founded by the younger brother of Christopher Columbus in 1496, this city is the oldest continuously inhabited European settlement in the Americas | |
| Its native daughter Gertrude Stein famously wrote 'there is no *there* there' about its drabness, but this transportation hub was once the end of the Transcontinental Railroad | |
| This city, the westernmost on the African mainland, was the finish line for an annual off-road endurance race until the event moved in 2009 due to security threats in Mauritania | |
| This popular tourist destination is the northernmost capital of a sovereign state | |
| Once named Léopoldville after a controversial Belgian king, this fast-growing African city is the centre of one of the continent's three largest urban areas | |
| This city, today the home of the African Union, is the capital of one of only two African countries that resisted colonization during the Scramble for Africa (1881-1914) | |
| Once merely a rest stop between Zacatecas and Mexico City, this city of 1 m. (named after the hot springs in the area) hosts the annual San Marcos National Fair | |
| This port city in 1979 became the first to gain special economic zone status; it is one of the largest migrant cities in China | |
| | Hint | Answer |
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| This city on the banks of the Niger River grew rapidly in the 1970s and 80s after two large uranium mines were constructed at rural Arlit | |
| This city on the eastern slope of the Ural Mountains, named after the wife of Peter the Great, is a major industrial city, especially for heavy engineering | |
| This low-lying city, Ecuador's most populous, has a port that handles 90% of the country's imports and 50% of its exports | |
| This western Ukrainian city near the Eastern Carpathians has been variously controlled by Poles, Cossacks, Swedes, Germans, and Russians in its stormy history | |
| This Russian city was the site of the decisive Battle of Stalingrad, in which both sides suffered more than 1 million casualties | |
| This humid city was a coastal fishing village until it was developed into the administrative and commercial centre of German East Africa | |
| This city on the Gulf of Oman has been known as a trading port since the 1st century | |
| This multiethnic city was destroyed by Genghis Khan in 1219, but it was rebuilt and profited from the Silk Road | |
| Located in the Quru River valley in the province of East Azerbaijan, this city of 1.5 m. is an industrial centre, producing carpets, textiles, cement, and agricultural machinery | |
| This city, the main urban centre of the autonomous community of Aragon, is also a centre for industry, supplied hydroelectric power from dams in the nearby Pyrenees | |
| This city, which straddles a volcanic field but is consistently rated one of the world's most livable, was first settled by the Polynesian Maori peoples around 1350 | |
| Established first as a Viking settlement, this city was briefly the second largest in the British Empire in the late 18th century | |
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