Here is the full list of all 101 Little hidden city achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
find basketball
find inflatable pool
find solar_battery
find gazebo
find bicycle
find VOLGA
find slide
find wheelchair
find medical bed
find water_motocycle
find swing
find air conditioning
find cat
find boat_old
find motorcycle
find traffic light
find sculpture_rock
find power station
find statue
find satellite_talk
find TV
find telescope
find tractor
find pointer
find camera
find football_ball
find flower_palicious
find electric car
the end of the game
start the game
find bag
find strap
find book
find coat
find hat
find magnifying_glass
find tube
find suitcase
find umbrella
find bicycle_old
find bottles
find newspaper
find nameplate
find stroller
find shoes
find suitcase_02
find suitcase_opened
find log
find potty
find tools
find watering can
find watering can_2
find stairs
find plant_in_roof
find Boots
find light
find bucket of apples
pass_level_country house
find watermelon
find eggplants
find bananas
find bank_register
find bucket_washing brush
find trolley
find basket
find carton
find soft toy
find sink
find moped
find pac_products
find jacket
find fish
find steak_sibs
find stool
find handbag_female
find cake_shocolate
find shoe
find drawer
pass_level_supermarket
find wheel
find Jack
find canister
find canister_2
find spare part
find engine
find extinguisher
find strut
find soona
find muffler
find hovel
find haystack
find wheel_2
find barrel
find part of the train
find logs
find army trailer
find equipment for garage
find old car
complete a level gas station
pass_level_busstation
pass_level_apartment