large antique cupola as garden ornament

first, you utterly abandon the idea of keeping such a thing at all, and give it to ME.  lol.  i have ALWAYS wanted such a garden ornament....

here's what i would do:  since your land is flat, make a berm - quite a large one, i'd say - at least three times the size of your cupola in length and two in width, not circular.  height of berm need not be more than 18-24 inches.  let the sides slope up gradually and flatten the top area.  site your cupola off center or on center, purely your choice.  centered would mean more formal planting, off-center = more relaxed style.  berm can be free-form and should be broadly curvilinear.  and putting the cupola upon four cinder blocks (hidden) would probably make it more stable - or build it a stone or brick foundation so it won't have the wood touch the soil.

this berm can be located anywhere that you wish on the property, as long as it can be viewed from a good vantage point.  framed by a window inside the house?  seen from a deck or patio?  set where passersby can enjoy it?  tucked back along the property line for private enjoyment?  whatever suits you.  just do not place it dead center of the plot!

then plant something that would provide a background to anchor it to the landscape - perhaps a evergreen hedge or shrub - behind the cupola.  maybe a small ornamental tree nearby as well.  then plant whatever you like around it, with low things at the front to show it off.   wildflowers such as daffodils, daisies, rudbeckia, bleeding heart...  or hostas and boxwood.  almost anyting goes here!  the possibilities are infinite!  i am so jealous....

AND, if you don't post photos of the ongoing progress of this, as well as the final outcome, i personally will be verrrrry unhappy.     =)