Saturday marks the 100th anniversary of an assassination that's believed to have led to World War One.
Many events will be held across Europe to commemorate the incident and to have future generations consider peace.
On June 28th 1914, the Austro-Hungarian crown prince Archduke Franz Ferdinand was shot dead by a Bosnian Serb in Sarajevo, the current capital of Bosnia and Herzegovina.
Academic researchers are gathering in the city for an international symposium to mark the centennial of the assassination.
Many tourists from around the world are visiting "Latin Bridge", the site of the killing.
The car that the archduke and his wife were in when they were murdered is on display in Austria's capital Vienna.
Jun. 27, 2014 - Updated 21:14 UTC