A suggestions for two different types of observation towers. The first being your common modern but not themed (i.e. kissing tower from RCT3) observation tower but with the option to change the cabin to either a double deck or single deck cabin.
Secondly, the addition of the rarely found Island Observation tower like the one found at Efteling:
Secondly, the addition of the rarely found Island Observation tower like the one found at Efteling:
