Menger spheres

Mandelbulb3Dv16{
K.....S....O/...ET...2.....UwutnwW2B.Lo.Tzmi6U0E7xCSqQTtmzXQUACo/8b4.rZTEUacv51k
................................zGA6DHvovz1........Y./..................y.2.....
.................M.//....6.Y0...b4....E......UAEs0R7mHqD/.U0RC4E...Q//...u1.BnAH
z.EnAnQD..../2.........../......................................................
........NDNARJpKBxHUqRkRxFNMz.crn97td3pjTru3EKhiPx1wUtA20jh9zABd0OrZdwpD8.fIVzVk
Px1q9dxxP6bJzqbHOfm4gLpj......I9......................sD.2kz....................
.............................UWRi6.iqtW.6Rb90UxRi6.OstW.sXb90UMSi6..............
................wzzzz1....UU.2A.Z0...w0...kG....v0...s7....9....l....cn....Ui3P3
NE2U.0aZc1.M6/1EqxNo.tuZc06.0c..zrhe..JOf5nlcsxjdpXRgyfh6.A...........U.8..Xo/2.
Mo0FIhT67.24hE2Jv5G0./..........NEW0.EmPT1kj.u68YrpuzYO3VqZrgjzD..........E.lckz
uUXA.6TWD7yHGpzD..........EdmeZpwzPpzKEA8oDU.06.uaKaZ6Aeiz1x58nQJ6TnzcSRpBK.iAwj
/6V0z5FAZ............oklrlkCx9yjW9wTJHz2Vz1..o5QA/kChk/.rlkYeJ2.sMHB.IJ4Uqei.stT
M/.faMvEo/.VcJ2.j61aVt8......sEEC34H.gH9Q.E79ZLf./k4NQ/.JgZHvN4.Sy5K.AzOwesQ.EV2
D.E7s3cSl0.3F./....y3q/.zz/k.1A.yz1yAT2.xzpaqa9.................................
E....6.....6....2....A....EEh3aSdtqNU6oPs/UQ..........................k/9.......
...................wz...........aNaNaNaNiz1.....................................
................................................................................
.....................2.....3....8....oINiRKNmB1.plKM..pPr/......................
.....MU/4MU/4................U.E........kz1........wz.........zD................
................................................................................
................................}