In the 12th century the abbot of the Cistercian monastery in Sedlec went to the Holy Land. He brought back soil from Golgotha and sprinkled it over the cemetery. As word spread of his act, this became a popular cemetery in Central Europe and, after the Black death and Hussite wars, soon thousands and thousands of people were buried in the cemetery. When the church was eventually built, bones were unearthed to lay the foundations, and were stored within the Church itself. More bodies were unearthed to make room for others, and soon the church and its grounds were filled with piles of bones.In the 1800's the Schwarzenburg family employed a woodcarver to "arrange" the bones and it led to what is seen in the church today.

You will find a coat of arms, chalices, pyramids of skulls, and a massive hanging chandelier (made of at least one of every bone in the human body) to name a few things. It's very morbid, but fascinating to see! It's easily done as a short trip from Prague!

It is sort of weird when you get inside to see, that all decorations in this place are made of bones and to make it even more strange - there are 4 piles of bones. Just piles :)
From the one hand - it is gross! From the other hand... well, from the other hand it isn't so gross, but still gross :). Sort of "let's unbury some guys and make candleholders from their bones".
But this church is the only place, that worth to visit in Kutna Hora from my point of view

This is a wonderful, absolutely breathtaking place. Unless you are terribly afraid of skulls, you absolutely must visit.
I don't know whether the rules about filming and photographing have changed since I visited, back then it was forbidden, although I saw a few people with cameras anyway.

Such a crazy fascinating place.  I agree, a bit morbid, but so artistic and with a really interesting history!!

Creepy, wierd, but definitely worth the visit. The rest of the town is quite nice too so makes a good day trip.