BarChart3D

As of Version 7.0, BarChart3D is part of the built-in Mathematica kernel.

generates a three-dimensional bar chart using the matrix of heights

uses a specific style for each bar.

generates a bar chart of bars scattered at specific x and y coordinates with height z and a specific style.

BarSpacing	0	space between bars in the x and y directions
BarEdges	True	whether to draw the edges of bars
BarEdgeStyle	GrayLevel[0]	style for edges of bars
BarStyle	GrayLevel[1]	style for faces of bars

Chart an array of heights:

Needs["BarCharts`"]

Chart an array of heights:

Out[2]=