The X-Seed 4000 concept building. Proposed 4-kilometre height, 6-kilometre-wide sea-base, and 800-fl
The X-Seed 4000 concept building. Proposed 4-kilometre height, 6-kilometre-wide sea-base, and 800-floor capacity. -- source link
#building#villain
The X-Seed 4000 concept building. Proposed 4-kilometre height, 6-kilometre-wide sea-base, and 800-floor capacity. -- source link