There are some clusters that are much more than a clump of stars,
here are some of my favorites.

NGC 663 |
NGC 663: An open cluster in the
constellation Cassiopeia
|

NGC 869/884 |
NGC 869/884: Also known as the the Double
Cluster in Perseus. These are 2 open clusters in close proximity
in the constellation Perseus
|

NGC 6819 |
NGC 6819: Also known as the Fox-head
Cluster. It is located in the constellation Cygnus, and is a
very rich star field that, with a little imagination, appears to
look like a fox's head -- Just left and right of the central
core, you will see the apparition of two oval eyes, and just
below the central core, a little imagination shows the snoot of
the fox. Click on the image to enlarge it and see if you can
make it out.
|

NGC 2264 |
NGC 2264: This cluster with faint nebulosity
is found in the constellation Monoceros. It is also known as the
Christmas Tree Cluster due to its' distinctive shape
|