Breath of the Wild doesn’t have an equivalent to dungeons. There are only four divine beasts, and just like the shrines they are identical in appearance. They were just slightly more complex shrines with an animal theme. And the overworld doesn’t realistically have an awhile lot to find, by design. Since the game is entirely unstructured, you can’t put anything to find in the game, because you don’t know where the player will go and nothing to stop them from going anywhere. Thats why nothing amounts to anything more than a fractional stat boost or a temporary weapon. The outfits and the master sword are the only things worth actually finding in the game.