text=Style["legend",FontFamily->"Arial",25,GrayLevel[0.3]];
graphics=Graphics[Table[{Hue[i/2π],Opacity[0.5],Disk[{Sin[i],Cos[i]},0.5]},{i,0,2π,π/6}],ImageSize->50];
table=Grid[Array[(Subscript[a, ##])&,{3,2}],Frame->All,FrameStyle->Gray];
graphics3d=Graphics3D[Sphere[],ImageSize->65];
image=ImageCrop[ImageResize[ExampleData[{"TestImage","Splash"}],70],60];
control=VerticalSlider[ImageSize->Small];
plot=Histogram[Table[RandomReal[{0,10}]Sin[x],{x,0,2π,0.05}],BarOrigin->Left,AspectRatio->2,ImageSize->60,Axes->{False,True},Ticks->None];
formula=HoldForm[Integrate[x^x,{x,0,Infinity}]];

Grid[{{Plot[Sin[x],{x,0,2π},PlotLegends->text],Plot[Sin[x],{x,0,2π},PlotLegends->graphics]},{Plot[Sin[x],{x,0,2π},PlotLegends->image],Plot[Sin[x],{x,0,2π},PlotLegends->formula]},{Plot[Sin[x],{x,0,2π},PlotLegends->table],Plot[Sin[x],{x,0,2π},PlotLegends->plot]},{Plot[Sin[x],{x,0,2π},PlotLegends->graphics3d],Plot[Sin[x],{x,0,2π},PlotLegends->control]}},Frame->All,FrameStyle->Gray]