(They need to have power & water as well to be safe.) Cathedral of Plentitude: Requires construction of all city service buildings.Lazaret Plaza: Requires 3 weeks of Observatory: Requires 1,000 abandoned buildings for 5 weeks.If this doesn’t get you to 1000 abandoned buildings (see bwloe) you can max out your residential taxes too once you finish the unemployment requirement. (Max out commercial, office and industrial taxes, then wait. Oppression Office: Requires unemployment over 50% for 5 weeks.Take a look at that section of the walkthrough for details. Once you get the court house unlocked you can ease off a little, as the achievement only requires 40%. You may want to keep this run going longer to get Tough City. (Shut off all the police stations and wait. Court House: Requires crime rate over 50% for 5 weeks.You can even run out of money, just keep refusing the bailout.) You should be fine as long as you have a few million. (Cut your taxes to 4% across the board and wait for 20 weeks. Posh Mall: Requires all tax rates at most 4% for 20 weeks.(Turn off all your incinerators and dumps and wait.) Mall of Moderation: Requires average garbage piling per building of at least 25.(Build a taxi depot near each grid and wait a while.) Fantastic Fountain: 500 people transported using taxi.Other: These are generally a little more disruptive, you can probably do more than one at a time, unless their requirements conflict.Change the industry there to forestry specialization and wait a little bit.) There should be plenty around your South and north grids. (For this one, go to the Natural Resources info view and find some forest land. Opera House: Requires extraction of a total of 3,000 units of natural resources.Have 1000 squares of beach specialized commercial zone Casino: 5,000 squares of leisure specialization built.It is fine if they cover other unrelated base zone type.

Since each column is 2,300, I would have your zones cover at least 4 columns of the appropriate type to speed things along. You will need to wait a while in game for the zone to actually populate enough. Specialized Zoning: These require specialized zoning, create a district over the appropriate base zone type then switch it to the appropriate type.Grand Library: Requires 7 Universities for 10 weeks.High Interest Tower: Requires you to have $2,000 in debt (Not technically purchasing, but just take out the largest loan, then pay it back.).(Build a bunch of water towers in the boonies.) Servicing Services Office: Requires 300 city service buildings.Theater of Wonders: Requires 3 Universities.Sea and Sky Scraper: Requires Cargo Harbor and Passenger Harbor.Zoo: Construct Fishing Pier and Riding Stable.Luxury Hotel: Construct International Airport.Just build whatever is needed, make sure it has power/water/etc and that it registers the building as complete before going back to your previous save files. Purchasing: For these you just need to buy certain things and place them in your city, super easy if you have enough money (which you should).These will either mess up your city or waste money, so save your game, accomplish a few, then reload, the buildings will stay unlocked. Eiffel Tower: 30,000 squares of industrial zone built.Statue of Industry: Requires 10,000 squares of industrial zone.Arc de Triomphe: 15,000 children in elementary schools.MAM Modern Art Museum: Requires 50% of population highly educated.Aquarium: Requires 5,000 children in elementary schools.Official Park: Requires 10,000 squares of office zone.Business Park: Requires 20,000 squares of commercial zone.Colossal Order Offices: Requires education at $20,000/week for 10 weeks.Tax Office: Requires electricity production of 1,000 MW.Friendly Neighborhood Park: Requires 10,000 squares of residential zone.Transport Tower: Requires 1,000 weekly passengers.Grand Central Terminal: Fill 7 instances of Cemetery.Plaza of the Dead: Requires 3 full Cemeteries.Brandenburg Gate: 10,000 full lifespans lived in the city.Science Center: Requires 5,000 full lifespans lived in the city.Fountain of Life and Death: Requires one full lifetime spent in a city.Statue of Liberty: City produces a total of 5,000 units of goods.Stadium: City produces a total of 1,000 units of goods.These buildings should all be completed already from what you have done so far

Dlc unlocker cities skyline unlocker