Chicago Super Tower

i was cheakin out the sister site- SSP and under the chicago/fantasy section it shows 3 dif. buildings. but what caught my attention was that for this one tower they called "Chicago Super Tower" it had 30 different ideas for this one building when you would usualy see one or mabey two! so i was wondering what the deal was with this one. was this tower ever up for some seriouse descution or is someone just board? heres the 30 dif. options ,all 677.3 meters tall!! : SSP-diagrams >