Since we are all in cemetery mode, I might as well throw in my favorite example of exhumation. In 1999, I visited Evora, Portugal and made my way to its Capela dos Ossos, or bone chapel within the Church of St Francis. The story goes that a number of local cemeteries had a bit of an overcrowding issue and one of the monks thought it might be a good opportunity to remind people of their own mortality.
Surprisingly, the effect is not nearly as ghoulish as I thought it would be. There's a beauty to how the bones from the 5000 or so skeletons are arranged. More mosaic than gorefest. I make this statement noting two exceptions: the dessicated, but still raggedly clothed corpse hanging on the wall (see below) and the foreboding inscription carved over the archway into the chapel. It roughly translates to "Our bones that are here await yours."
The practice exhuming skeletons and lining chapels with them hardly unique to Evora or Portugal. Ossuaries exist in a number of places throughout southern and eastern Europe. Notable among these is Sedlec in the Czech Republic. Sedlec's ossuary was built when a gothic church was built on the site of a mass grave (perhaps put there in the wake of the Black Plague). The estimated 50,000 skeletons here not only lined the walls, but were incorporated into every element of the church, including the chandelier pictured below.
What is not clear to me is which takes precedence - the need to store skeletons somewhere or the ostensible message of the bone chapels - that people need to realize that life on earth is fleeting and always exists side-by-side with death.