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Members of a female choir seek shade before performing in the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders are scheduled to hold ceremonies at Andricgrad later in the day to mark the centenary of the assassination of Austrian Archduke Franz Ferdinand on June 28, 1914, by Serbian secessionist Gavrilo Princip, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Serbian film director Emir Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451365946 )

People reconstruct a scene on June 28, 2014 in Brno, Czech Republic showing Hungarian soldiers during the assassination of Austrian Archduke Franz Ferdinand (not pictured) and his wife who were killed on June 28, 1914 in Sarajevo. Bosnia marked 100 years since the assassination of Ferdinand in Sarajevo that sparked World War I, but the divisive legacy of the gunman Gavrilo Princip meant Serbs were shunning the event. (RADEK MICA/AFP/Getty Images) ( 531183234 )

A noose that will be part of a theatrical performance later in the day hangs in a building's window frame at the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders are scheduled to hold ceremonies at Andricgrad later in the day to mark the centenary of the assassination of Austrian Archduke Franz Ferdinand on June 28, 1914, by Serbian secessionist Gavrilo Princip, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Serbian film director Emir Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451366324 )

People look at a mosaic depicting Gavrilo Princip, the Bosnian-Serb nationalist who assassinated Archduke Franz Ferdinand in 1914, and other members of "Mlada Bosna" movement in the Bosnian town of Visegrad,140 kilometers east of Sarajevo, Saturday, June 28, 2014. Marking the centennial of the beginning of World War I in their own way, Bosnian Serbs in Visegrad on Saturday unveiled a mosaic of the man who ignited the war by assassinating the Austro-Hungarian crown prince on June 28, 1914. (AP Photo/Darko Vojinovic) ( Bosnia WWI )

Tourists look at exhibits in Sarajevo museum, including life-size wax figures of Archduke Franz Ferdinand and Sofia von Hochenberg, in Sarejevo, Saturday, June 28, 2014. Saturday marks a century since the assassination of the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand and his wife Sofia von Hochenberg by Serb nationalist Gavrilo Princip, on June 28, 1914. The assassination was the event that ignited the start of World War One. (AP Photo/Amel Emric) ( Bosnia WWI )

A visitor looks at a painting that depicts Serbian secessionist Gavrilo Princip (L) assassinating Austrian Archduke Franz Ferdinand and his wife Duchess Sophie in a gallery at the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders held ceremonies at Andricgrad earlier in the day to mark the centenary of the 1914 assassination of the Archduke, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Serbian film director Emir Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451373010 )

Actors rehearse a piece for a performance the next day at the Latin Bridge on June 27, 2014 in Sarajevo, Bosnia and Herzegovina. Sarajevo will commemorate the 100th anniversary of the June 28, 1914, assassination of Austrian Archduke Ferdinand by a Serbian secessionist named Gavrilo Princip, which was the key event that propelled Europe into World War I. (Photo by Sean Gallup/Getty Images) ( 451313986 )

Tourists posing for photo on Friday, June 27, 2014, inside replica of the "Graf & Stift" car parked in front of museum at the historical street corner in downtown Sarajevo, where Gavrilo Princip assassinated Austro-Hungarian heir to the throne Archduke Franz Ferdinand and his wife Sofia, on June 28, 1914. The Sarajevo assassination is officially considered to have been the immediate cause for the beginning of WWI leading Europe into the century of wars started 100 years ago. (AP Photo/Amel Emric) ( Bosnia WWI )

Performance artist Damir Nikcic shoots water at passing cars to then wipe their windshiels with a squeegee at the spot where Austrian Archduke Franz Ferdinand and his wife, Duchess Sophie, were assassinated 100 years before on June 28, 2014 in Sarajevo, Bosnia and Herzegovina. Sarajevo is commemorating the 100th anniversary of the June 28, 1914, assassination of the Archduke by a Serbian secessionist named Gavrilo Princip, which was the key event that propelled Europe into World War I. (Photo by Sean Gallup/Getty Images) ( 451360990 )

People reconstruct a scene on June 28, 2014 in Brno, Czech Republic showing wife Sophie, (2ndL) Duchess of Hohenberg of Austrian Archduke Franz Ferdinand (not pictured) who were killed on June 28, 1914 in Sarajevo. Bosnia marked 100 years since the assassination of Ferdinand in Sarajevo that sparked World War I, but the divisive legacy of the gunman Gavrilo Princip meant Serbs were shunning the event. (RADEK MICA/AFP/Getty Images) ( 531183114 )

People reconstruct a scene on June 28, 2014 in Brno, Czech Republic of Austrian Archduke Franz Ferdinand (C) and his wife Sophie, Duchess of Hohenberg (L) who were killed on June 28, 1914 in an old Daimler car in Sarajevo. Bosnia marked 100 years since the assassination of Ferdinand in Sarajevo that sparked World War I, but the divisive legacy of the gunman Gavrilo Princip meant Serbs were shunning the event. (RADEK MICA/AFP/Getty Images) ( 531181358 )

Serbian filmmaker Emir Kusturica (seated) listens to a band play in the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders are scheduled to hold ceremonies at Andricgrad later in the day to mark the centenary of the assassination of Austrian Archduke Franz Ferdinand on June 28, 1914, by Serbian secessionist Gavrilo Princip, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451365942 )

People reconstruct a scene on June 28, 2014 in Brno, Czech Republic showing Bosnian Serbian Gavrilo Princip (below, L), who assassinated Austrian Archduke Franz Ferdinand (3rd R) and his wife Sophie, Duchess of Hohenberg (4th R) in Sarajevo. Bosnia marked 100 years since the assassination of Ferdinand in Sarajevo that sparked World War I, but the divisive legacy of the gunman Gavrilo Princip meant Serbs were shunning the event. (RADEK MICA/AFP/Getty Images) ( 531182746 )

A man waves a Serbian flag as he walks through the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders are scheduled to hold ceremonies at Andricgrad later in the day to mark the centenary of the assassination of Austrian Archduke Franz Ferdinand on June 28, 1914, by Serbian secessionist Gavrilo Princip, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Serbian film director Emir Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451365854 )

Members of regiments in historical uniforms stand in front of the castle where Austrian Archduke Franz Ferdinand and his wife Sophie found their last home in Artstetten, Austria, Saturday, June 28, 2014. Franz Ferdinand and Sophie were assassinated in Sarajevo on June 28, 1914, The assassination triggered the outbreak of World War I. (AP Photo/Ronald Zak) ( Austria WWI )

Visitors wearing t-shirts that depict Serbian secessionist Gavrilo Princip, the assassin of Austrian Archduke Franz Ferdinand and his wife, Duchess Sophie, walk trhough the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders are scheduled to hold ceremonies at Andricgrad later in the day to mark the centenary of the assassination of the Archduke on June 28, 1914, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Serbian film director Emir Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451367588 )

Visitors walk past a cinema that is showing a film about the assassination of Austrian Archduke Ferdinand by Serbian secessionist Gavrilo Princip in the mock-village of Andricgrad on St. Vitus Day in Srpska Republika on June 28, 2014 in Visegrad, Bosnia and Herzegovina. Serbian leaders are scheduled to hold ceremonies at Andricgrad later in the day to mark the centenary of the 1914 assassination, an event that propelled Europe into World War I. The city of Sarajevo is holding its own commemoration, though Serbian leaders are boycotting the Sarajevo events, claiming the Bosniaks have turned the commemoration too partisan. Andricgrad was built by Serbian film director Emir Kusturica and will become the set for a film about Yugoslav poet Ivo Andric. (Photo by Sean Gallup/Getty Images) ( 451366374 )

The car in which Austrian Archduke Franz Ferdinand and his wife Sophie were shot to death is on display at the Museum of Military History in Vienna, Austria, on Friday, June 27, 2014. Archduke Franz Ferdinand and his wife Sophie were assassinated in Sarajevo on June 28, 1914, an event which led to the outbreak of World War I. (AP Photo/Ronald Zak) ( Austria Archduke Assassination WWI )

A pistol used by one of the assassins of Austrian Archduke Franz Ferdinand when he was shot to death in Sarajevo is on display at the Museum of Military History in Vienna, Austria, on Friday, June 27, 2014. Franz Ferdinand and his wife Sophie were assassinated in Sarajevo on June 28, 1914, and event which eventually led to the outbreak of World War I. (AP Photo/Ronald Zak) ( Austria Archduke Assassination WWI )

The blood soaked uniform jacket worn by Austrian Archduke Franz Ferdinand when he was shot to death in Sarajevo is on display at the Museum of Military History in Vienna, Austria, on Friday, June 27, 2014. Franz Ferdinand and his wife Sophie were assassinated in Sarajevo on June 28, 1914, and event which eventually led to the outbreak of World War I. (AP Photo/Ronald Zak) ( Austria Archduke Assassination WWI )

Members of a regiment in historical uniforms stand in front of the crypt of Austrian Archduke Franz Ferdinand and his wife Sophie in Artstetten, Austria, Saturday, June 28, 2014. Franz Ferdinand and Sophie were assassinated in Sarajevo on June 28, 1914. The assassination triggered the outbreak of World War I. (AP Photo/Ronald Zak) ( Austria WWI )