If you like circle builds, then this one maybe for you. I gave my Prototype-B Spiral Skyscraper a 1.12 upgrade (That's MC Version, but it would have been Billions in the real world). This Skyscraper was suppose to be a replicate of a future build in the US (Shhhhh), but because we are missing some block colors (Silver, Copper, and a few other color blocks), I could not take the concept to market, so I let it sit around for a couple of years, aging in my MC World (I heard you..let it keep aging). It was time to take a break from my two massive (Never ending) MC projects and give this a nice touch up. As it climbs into the sky, the spiral also gets smaller and smaller, as does the apartment/office spaces (Unlike the Construction Skyscraper which keeps is same circular size). It has 4 Elevators, 1 goes all the way to the top.
This one is 3 block shy of the top of the world, starting at a height of 63.
Place it next to the Construction Skyscraper in your world.