The most prolific mistake I see touts a home's "Palladium Windows". There is simply no such thing.
Palladium is a a rare metallic element of the platinum group, silver-white, ductile and malleable, harder and fusing more readily than platinum: used chiefly as a catalyst and in dental and other alloys. Symbol: Pd; atomic weight: 106.4; atomic number: 46; specific gravity: 12 at 20°C.
So unless the previous owners chiseled out all of their old fillings to make windows, chances are that the poor misinformed realtor really wants us all to know that the house has a PALLADIAN window. Which looks like this:
And ONLY like that. The entire composition of three parts is a Palladian Window. This nuance is lost on some who will describe any window with an arch top on it as Palladian. So, a brief recap:
Cheap, builder-grade half round transom. NOT Palladian or Palladium.