diff --git a/src/arg_desc.jl b/src/arg_desc.jl
index ef0ab400..136b1603 100644
--- a/src/arg_desc.jl
+++ b/src/arg_desc.jl
@@ -107,5 +107,6 @@ const _arg_desc = KW(
 :foreground_color_border  => "Color Type or `:match` (matches `:foreground_color_subplot`). Color of plot area border (spines).",
 :foreground_color_text    => "Color Type or `:match` (matches `:foreground_color_subplot`). Color of tick labels.",
 :foreground_color_guide   => "Color Type or `:match` (matches `:foreground_color_subplot`). Color of axis guides (axis labels).",
+:mirror                   => "Bool.  Switch the side of the tick labels (right or top).",
 
 )
diff --git a/src/args.jl b/src/args.jl
index fbc3993c..4f651069 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -266,6 +266,7 @@ const _axis_defaults = KW(
     :foreground_color_guide  => :match,            # guide text color,
     :discrete_values => [],
     :formatter => :auto,
+    :mirror => true,
 )
 
 const _suppress_warnings = Set{Symbol}([
@@ -285,23 +286,24 @@ const _suppress_warnings = Set{Symbol}([
 # add defaults for the letter versions
 const _axis_defaults_byletter = KW()
 for letter in (:x,:y,:z)
-    for k in (
-                :guide,
-                :lims,
-                :ticks,
-                :scale,
-                :rotation,
-                :flip,
-                :link,
-                :tickfont,
-                :guidefont,
-                :foreground_color_axis,
-                :foreground_color_border,
-                :foreground_color_text,
-                :foreground_color_guide,
-                :discrete_values,
-                :formatter,
-            )
+    for k in keys(_axis_defaults)
+    # for k in (
+    #             :guide,
+    #             :lims,
+    #             :ticks,
+    #             :scale,
+    #             :rotation,
+    #             :flip,
+    #             :link,
+    #             :tickfont,
+    #             :guidefont,
+    #             :foreground_color_axis,
+    #             :foreground_color_border,
+    #             :foreground_color_text,
+    #             :foreground_color_guide,
+    #             :discrete_values,
+    #             :formatter,
+    #         )
         _axis_defaults_byletter[Symbol(letter,k)] = :match
 
         # allow the underscore version too: xguide or x_guide
diff --git a/src/backends/pyplot.jl b/src/backends/pyplot.jl
index 4bb074bb..9c37ffee 100644
--- a/src/backends/pyplot.jl
+++ b/src/backends/pyplot.jl
@@ -985,8 +985,15 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
         # axis attributes
         for letter in (:x, :y, :z)
             axissym = Symbol(letter, :axis)
-            axis = sp[axissym]
             haskey(ax, axissym) || continue
+            axis = sp[axissym]
+            pyaxis = ax[axissym]
+            if axis[:mirror] && letter != :z
+                pos = letter == :x ? "top" : "right"
+                pyaxis[:set_label_position](pos)     # the guides
+                pyaxis[:set_ticks_position]("both")  # the hash marks
+                pyaxis[Symbol(:tick_, pos)]()        # the tick labels
+            end
             py_set_scale(ax, axis)
             py_set_lims(ax, axis)
             py_set_ticks(ax, get_ticks(axis), letter)
@@ -994,14 +1001,14 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
             if get(axis.d, :flip, false)
                 ax[Symbol("invert_", letter, "axis")]()
             end
-            ax[axissym][:label][:set_fontsize](py_dpi_scale(plt, axis[:guidefont].pointsize))
+            pyaxis[:label][:set_fontsize](py_dpi_scale(plt, axis[:guidefont].pointsize))
             for lab in ax[Symbol("get_", letter, "ticklabels")]()
                 lab[:set_fontsize](py_dpi_scale(plt, axis[:tickfont].pointsize))
                 lab[:set_rotation](axis[:rotation])
             end
             if sp[:grid]
                 fgcolor = py_color(sp[:foreground_color_grid])
-                ax[axissym][:grid](true, color = fgcolor)
+                pyaxis[:grid](true, color = fgcolor)
                 ax[:set_axisbelow](true)
             end
             py_set_axis_colors(ax, axis)