When??
Simon! Give us a time-check please!
Today, folks living in remote parts of Australia's north and some Pacific islands will experience an annular eclipse, the type of eclipse just one grade below a total eclipse. That means the sun will just remain visible as the moon passes between it and Earth. The result will be a view of a “ring of fire” as Sol's hellish …
In addition to what Neoc said, a standard lunar eclipse is really boring to look at: it's a full moon which goes dark red (commonly called a "blood moon") because even though the moon is in Earth's shadow there is enough sunlight being scattered by Earth's atmosphere to provide some light to the moon.
What I would love to see would be an eclipse while standing on the moon, i.e. the earth passing in front of the sun. The earth would look like a black disk with a surrounding ring of red atmosphere. Now THAT would be cool (as if standing on the moon wouldn't be awesome enough).