New Challenge: Hannover Town Hall!
Requirements: the chests will be received by players level 15+
Main reward is the Hannover Town Hall (3,950 coins, 2-3 energy, 1-4 glass baubles every 24 hours, size size 10*7, can be placed anywhere).

Each chest can be opened for 9 Ice keys.
There are 3 ways to get Keys:
1. Complete the quests:
I (3 keys)
Collect 27 Pairs of Glasses (Summer House, Upgraded Summer House)
Collect 21 Envelopes (Subway Station, Upgraded Subway Station, Eastern Station, Central Station)
Collect 24 Water bottles (Wok, Upgraded Wok Cafe) 
II (3 keys)
Collect 3 Coffee Tables (Furniture Factory)
Collect 4 Files with documents (City Hall)
Collect 31 Brochures (German House, Upgraded German House) 
III (4 keys)
Collect 22 Invitations (Stationery Shop, Upgraded Stationery Shop)
Collect 14 Flags (Kindergarten)
Collect 7 Slides (Cinema)

2. Collect profits from the following buildings:
  • Bridge (1 key every 24 hours)
  • Sweet Store (1 key every 16 hours)
  • Thean Hou Temple - 2-3 keys every 22 hours
  • Wightwick Manor - 2-3 keys every 22 hours
  • Natural History Museum - 3-5 keys every 20 hours
3. Use the sale offer!

Special Offer Whitewick Manor


Wightwick Manor: 4,100 coins, 1-4 energy, 2-3 glass baubles, 2-3 ice keys every 22 hours, 75 marathon points one time when purchasing, size 10*7, can be placed anywhere
Thean Hou Temple: 4,200 coins, 2-4 energy, 2-4 glass baubles, 2-3 ice keys every 22 hours, 75 marathon points one time when purchasing, 
Washington Post: 4,100 coins, 1-3 energy, 1-3 glass baubles every 20 hours, 36 ice keys, 75 marathon points one time when buying;
Carlowrie Castle: 4,300 coins, 3-5 energy, 2-4 glass baubles every 18 hours, 75 marathon points, 36 ice keys one time when buying
Glamis Castle: 4,300 coins, 2-4 energy, 2-4 glass baubles every 20 hours, 75 marathon points, 36 ice keys one time when buying;
Natural History Museum: 4,500 coins, 2-4 energy, 2-4 glass baubles, 3-5 ice keys every 20 hours, 80 marathon points one time when buying;