A wormhole is a speculative structure linking disparate points in spacetime and is based on a special solution of the Einstein field equations. A wormhole can be visualized as a tunnel with two ends at separate points in spacetime.
Full 3D animation: https://opensea.io/assets/0x495f947276749ce646f68ac8c248420045cb7b5e/62344208709463698784052419757345207206556287894629620541486388033730780332033/