Bathymetric

http://www.worldmapsonline.com/np_geo/oceania_bathymetry_lg.htm
This Bathymetric map shows the sea floor for Oceania. Note the attention that it gives to the elevation of the sea floor.

Correlation matrix

http://www.renci.org/~sthakur/figs/Poly_Vis_similarity_matrix.jpg

This matrix show the similarity of two different chemical polymers.

Stem and leaf plot

http://mdk12.org/instruction/curriculum/mathematics/graph_stem.html

This simple stem and leaf plot chows the heights of several children in centimeters.

Box plot

http://itl.nist.gov/div898/handbook/eda/section3/boxplot.htm

These box plots compare the energy output of four different machines.

Histogram

http://www.worsleyschool.net/science/files/bargraphs/page.html

This simple histogram shows the frequency of certain masses of fish.

Parallel coordinate graph

http://www.whopaidthem.com/

This plot shows the results of a test that was meant to guess the test takers understanding of political funding.

Triangular plot

http://psychology.wikia.com/wiki/Lineage_(evolution)

Triangle plots allow for three different things to be compared. In this example shows where certain ethnicities fall within three distinct groups.