In my search for fabulous sunken living rooms I came across this great blog post by dumbwit tellher: which made me smile. Here are a few that could almost convince me to go for it.
Via Ouno design
authentic conversation pit! -- by the great Alexander Girard.Via LA Times blog
Via Apartment Therapy Not much information about this conversation pit created out of hundreds of small pillows stacked like sandbags in Amsterdam,
Via Interior Design*** UPDATED INFO: this is the interior of the famed Miller House of Columbus, IN, designed by none other than Eero Saarinen in 1957. ***