A new The Spire 75 story high apartment building found under Decor / Misc. Decor, costs 0. It is 55 m x 55 m and 315 m tall. Can be used as a rabbit hole. This is roughly 1/2 of the height of the "The Spire - ultra modern condominium".
The Spire 75 story high (MediaFire)
The Spire - ultra modern condominium