For medieval history buffs, the Czech town of Kutna Hora has two great attractions: St. Barbara's Church, often called a cathedral because of its grandeur, and the Sedlec Ossuary, located beneath the Cemetery Church of All Saints outside the town. St. Barbara's is one of the best examples of Gothic architecture in central Europe and is a UNESCO world heritage site. But visitors are more attracted to the ossuary, a chapel containing bones of more than 40,000 people, arranged in decorative patterns. Those decorations are now being dismantled so that the centuries-old bones can be cleaned while the church undergoes a renovation. VOA's Zlatica Hoke reports how it is done.