Multiple Dimensions
Number of Dimensions
F
i
g
u
r
e
s
0 1 2 3 4 5 6 7 8 9 10 11 12
Point 1 2 4 8 16 32 64 128 256 512 1024 2048 4096
Line 1 4 12 32 80 192 448 1024 2304 5120 11264 24576
Square 1 6 24 80 240 672 1792 4608 11520 28160 67584
Cube 1 8 40 160 560 1792 5376 15360 42240 112640
Tesseract 1 10 60 280 1120 4032 13440 42240 126720
? 1 12 84 448 2016 8064 29568 101376
? 1 14 112 672 3360 14784 80256
? 1 16 144 960 5280 25344
? 1 18 180 1320 7920
? 1 20 220 1760
? 1 22 264
? 1 24
? 1
Explaination:

A point has 0 dimensions.  There is nothing you can measure on it.  It is made up of 1 point.

A line has 1 dimension.  You can measure its length.  It is made up of 1 line and 2 points (the ends).  You make a line by translating a point through the first dimension.

A square has 2 dimensions.  You can measure its length and width.  It is made up of 1 square, 4 lines (the sides), and 4 points (the corners).  You make a square by translating a line through the second dimension.

A cube has 3 dimensions.  You can measure it's length, width, and height.  It is made up of 1 cube, 6 squares (the sides), 12 lines (the edges), and 8 points (the corners).  You make a cube by translating a square through the third dimension.

A tesseract has 4 dimensions.  This is where our experience lets us down, even though the math of it still holds up.  The columns in the chart above show how many of the lower order figures make up a tesseract.  You make a tesseract by translating a cube through the fourth dimension.

And so on.  Words begin to fail in the description of higher order figures, but the math keeps on going forever.
 
Pyramid of Sums

http://pweb.netcom.com/~hjsmith/WireFrame4/tesseract.html
http://www.geom.umn.edu/docs/holt/tesseract/top.html
http://www.treasure-troves.com/math/Hypercube.html
http://www.iptrc.com/
http://atoys.com/hcube.html
http://dogfeathers.com/java/spirals.html