The angel who talked to me had a measuring rod of gold to measure the city. The city lies foursquare, its length the same as its width; its length and width and height are also equal. A perfect cube capable of both warp and transwarp velocities.
And the city was surrounded by a subspace field, an adaptive and regenerating force shield that none could penetrate. The city was armed with both beam and projectile weaponry, cutting beams and magnetometric guided charges, missiles and tractor beams.
The glory and honor of the nations will be brought into it and assimilated. But nothing unclean will be assimilated.
(Revelation 21 + Star Trek)