You are right: it’s the Atomium quest!
https://apps.facebook.com/super_city_game

SuperCity was chosen as a place for the World Science Fair.
Help the citizens prepare and get the monumental Atomium in your city!

Conditions and quest steps are as follows.

Requirements: level 15.
No timers! You have 15 days to complete all the tasks.
Reward: Atomium (3500 coins, 2-4 energy every 24 hours).

This offer is available to get till May, 22 9:00 UTC (4:00 EST).

Atomium I
– Collect 28 Cinnamon Sticks (Bakery – every 4 hrs)
– Collect 30 Straw hats (Family House – every 2 hrs)
– Collect 35 Throw Blankets (Colonial House – every 1 hr)

Atomium II
– Save up 250000 coins (will be written off)
– Collect 21 Amber earrings (Premium Cottage – every 1 hr)
– Collect 32 Diamonds (Mansion – every 4 hrs)

Atomium III
– Collect 38 Lucky tickets (Subway Station – every 4 hrs)
– Collect 7 Stopwatches (Beach shop – every 6 hrs)
– Collect 12 Buses (Ask friends)

Atomium IV
– Collect 23 Watering cans (Ranch – every 8 hrs)
– Collect 80 Fertilizers (Farm – Beetroot, 3 hrs crop)
– Collect 10 Flower pots (Shopping Center – every 4 hrs)

Atomium V
– Collect 17 Pans (Hostel – does not drop every time)
– Collect 15 7 Coffee table (Summer Mansion Furniture Factory – every 1 hr)
– Collect 16 Barstools (Pool Parlour – every 18 hrs)

Atomium VI
– Collect 45 Mini Fridges (Convenience Store – every 1 hr)
– Collect 10 Beds (Luxury Apartment – every 12 hrs)
– Produce 37 lots of Printed Cotton (Textile Factory – every 3 hrs)

Atomium VII
– Collect 57 Green paints (Flower Kiosk – every 2 hrs)
– Collect 9 Nitrile Gloves (Dental Surgery – every 5 hrs)
– Collect 13 Paintbrushes (Ask friends)

Atomium VIII
– Collect 29 Crane hooks (Construction Factory – Bathtub, every 4 hrs)
– Collect 36 Petrol cans (Petrol Station – every 4 hrs)
– Collect 10 Helmets (Hat Boutique – every 6 hrs)

Atomium IX
– Produce 18 lots of Web Cameras (Electronics Plant – every 24 hrs)
– Collect 19 Speakers (Cinema – every 3 hrs)
– Collect 48 Microphones (Pub – every 8 hrs)

Atomium X
– Produce 9 lots of Cream (Dairy Farm – every 8 hrs)
– Collect 29 Coffee Beans (Coffee House – every 12 hrs)
– Collect 63 Water bottles (Wok Cafe – every 2 hrs)

Atomium XI
– Hand out 12 Chemical agents (Drugstore – every 6 hrs)
– Collect 45 Maps of the stars (Stationery Shop – every 3 hrs)
– Collect 13 Microscopes (Ask friends)

Atomium XII
– Get BINGO (2 times)**

**Note: Only the moment of getting the winning combination counts. It means you can start to play BINGO before the stage 12 appears, BUT you should leave at least one field in a row/line/diagonal till the bingo happens to count the card to the quest.