The History of Wormholes

Einstein's theory of space and time is pretty weird, to be honest. And it is in principle possible for space time to be bent and curved in this sort of way you describe. What we think is that wormholes might be possible, it might be possible to join two points in space time through some strange little wormhole tunnel. But it seems that that route will always be longer than the conventional route. So not very useful as a way to travel large distances. It does look like the London Underground because when I go on the Underground, I always lose touch with reality on the surface.