What is the most valuable money in the world?

Can you enlighten me on the topic of the most valuable money in the world? Is it based on the traditional currency systems like the US dollar, Euro, or Pound Sterling? Or perhaps, are we venturing into the realm of cryptocurrencies where values can soar sky-high in the blink of an eye? How does one determine the value of money, especially in a globalized world where economic forces constantly shift? Are there any particular criteria or metrics that are widely accepted for measuring the worth of money?