A wormhole is visualized as a two-dimensional surface.
Wormhole (or Einstein–Rosen bridge or Einstein–Rosen wormhole) can be
visualized as a tunnel with two ends at separate points in spacetime.
Reference Source:
[1] Wikipedia Contributors. “Wormhole.” Wikipedia, Wikimedia Foundation, 26 July 2021, en.wikipedia.org/wiki/Wormhole. Accessed 5 Aug. 2021.