 The Klein bottle Construction of a Klein bottle by joining the edges of a rectangle. Added on 20160216 
  MoebiusKlein Two Moebius strips make a Klein bottle Added on 20160216 

  Multiple Klein bottles Linked Klein bottles. Note that the number of "bottles" needs to be uneven in order to have a nonorientable surface. Added on 20160216 

 
 
 
  The Klein Quartic II The transition from a hyperbolic 14gon to a genus 3 surface, while preserving the tiling by 24 heptagons. Added on 20160216 

 
 Dodecahedral tesselation of the hypersphere A dissection of the 120 cell in twelve rings of 10 dodecahedra. Two sets of six rings form 2 solid interlocked tori. The film starts by showing the 600 cell, the dual of the 120 cell. Added on 20160221 
  The Klein Quartic I How this hyperbolic tiling can be folded into a genus 3 surface. Added on 20160216 

