First, enter a city name to choose it from the drop-down box. Almost all of the 100 largest US and top 100 largest European cities, as well as a portion of the 100 largest World and most of the 100 largest UK cities are currently included. Then, name the top 100 places within 20km of that city’s center in terms of number of Google Maps reviews. Obviously some cities which are nearby (such as Newark and New York) will have many of the same places which are within 20km of both. Generally you will have to answer parks and museums separately (such as ‘Springfield Park’ or ‘Springfield Museum’) – I try to accept some generic answers, but if the place is named after someone you may have to name them when naming the place. Also, anything in the top 100 reviewed places is included, even businesses such as a ‘Walmart’ or hotels such as a ‘Hyatt’ – generally just the brand/company name is accepted for those. Also, places like a city’s main airport or zoo are generally accepted by just ‘airport’ or ‘zoo’.