User blog comment:2Actimv/Pokemon GO: I caught a Dragonair 4/@comment-25239866-20160803203108/@comment-3508553-20160811223558

PokéMarts don't quite exist like they do in the traditional games, you can buy the following from the shop:
 * PokéCoins
 * Incubators for eggs
 * Bag storage
 * For Items
 * For Pokémon
 * Pokéballs
 * Lures
 * Incense

Pokémon Gyms are also different, they usually are at places like parks, businesses large and small-they tend to be at places that people frequent that aren't going to be shady or dangerous areas.