{BarChart[{2,3,7}],ListLinePlot[{2,3,7}]}

Show[{BarChart[{2,3,7}],ListLinePlot[{2,3,7}]}]

Show[
Graphics[Disk[{0,0}]],
Graphics[Circle[{3,0}]],
Graphics[Rectangle[{1,1}]]
]

Show[Graphics[Disk[]],Plot[Sin[x],{x,0,22}]]

Show[Plot[Sin[x], {x, 0, 22}],Graphics[Disk[]]]

Show[
Graphics[Line[{{1,1},{2,2}}]],
Graphics[Circle[{0,0}]]
]

Overlay[{
Graphics[Line[{{1,1},{2,2}}]],
Graphics[Circle[{0,0}]]
}]

ListLinePlot[{{1,2,4},{2,3,3}}]

{ParametricPlot3D[{u/10,Sin[u],Cos[u]},{u,-20,20}],Graphics3D[Sphere[]]}

Show[{ParametricPlot3D[{u/10,Sin[u],Cos[u]},{u,-20,20}],Graphics3D[Sphere[]]}]