Fireworks

Police officers look on as a firework thrown by protesters explodes in front of them in the central district of Exarchia in Athens, on December 6, 2016, following a commemorative rally marking the eighth anniversary of the killing of teenager Alexandros Grigoropoulos by a Greek police officer.   Hundreds of  pupils, university students and workers  participated in  a  rally to mark the eighth anniversary of the fatal police shooting of a 15-years old student , which sparked riots in the country in 2008.    / AFP PHOTO / ARIS MESSINISARIS MESSINIS/AFP/Getty Images

Aris Messinis/AFP/Getty

Police officers look on as a firework thrown by protesters explodes in front of them in the central district of Exarchia in Athens following a commemorative rally marking the eighth anniversary of the killing of teenager Alexandros Grigoropoulos by a Greek police officer. Photo Aris Messinis/AFP/Getty 

Armed police officers in Westminster, London, as thousands of police including increased numbers of firearms officers will be on duty as the capital ushers in the New Year tonight. PRESS ASSOCIATION Photo. Picture date: Thursday December 31, 2015. Scotland Yard said there will be around 3,000 officers across central London as mayor Boris Johnson's fireworks display with Unicef brings in 2016. See PA story SOCIAL Year. Photo credit should read: Stefan Rousseau/PA Wire

Stefan Rousseau/PA

An armed police officer in Westminster, London. Thousands of police including increased numbers of firearms officers will be on duty as the capital ushers in the New Year tonight 

Fireworks explode over the Sydney Opera House in a 9pm display before the midnight fireworks which will usher in the new year in Australia's largest city...Fireworks explode over the Sydney Opera House in a 9pm display before the midnight fireworks which will usher in the new year in Australia's largest city, December 31, 2015. REUTERS/Jason Reed

Jason Reed/Reuters

Fireworks explode over the Sydney Opera House in a 9pm display before the midnight fireworks which will usher in the new year in Australia’s largest city 

 Hundreds of people stand on nearby cliffs as fireworks expode in the night sky

Ian Forsyth/Getty Images

Hundreds of people stand on nearby cliffs as fireworks expode in the night sky as they attend the annual bonfire and fireworks display on Wednesday evening in Skinningrove, England 

A North Korean soldier watches as fireworks explode, Monday, July 27, 2015, in Pyongyang, North Korea as part of celebrations for the 62nd anniversary of the armistice that ended the Korean War

Wong Maye-E/AP Photo

A North Korean soldier watches as fireworks explode, today in Pyongyang, North Korea as part of celebrations for the 62nd anniversary of the armistice that ended the Korean War. 

Demonstrators take cover from a police water cannon as fireworks, thrown by other protesters, explode around them during a demonstration against the opening of a new road including a part of the Middle East Technical University campus in Ankara...Demonstrators take cover from a police water cannon as fireworks, thrown by other protesters, explode around them during a demonstration against the opening of a new road including a part of the Middle East Technical University campus in Ankara February 25, 2014. Erdogan opened the road across the Middle East Technical University campus and uprooting a large number of trees in the area in Ankara on Tuesday.

Umit Bekta/Reuters

Demonstrators take cover from a police water cannon as fireworks, thrown by other protesters, explode around them during a protest against the opening of a road that intersects part of the Middle East Technical University campus in Ankara.

Egyptian students who support the Muslim Brotherhood (background) shoot fireworks at riot policemen (foreground) during clashes outside the University of Cairo campus in the capital

Mahmoud Khaled/AFP

Egyptian students who support the Muslim Brotherhood shoot fireworks at riot policemen during clashes outside the University of Cairo campus in the capital Cairo.

Fourth of July, US Independence Day fireworks are seen over the US Capitol and National Monument in Washington, DC on July 4, 2013.

Paul J. Richards/AFP

US Independence day fireworks are seen over the US Capitol and National Monument in Washington, DC on Thursday night

Fireworks light up the sky as Hundreds o...Fireworks light up the sky as Hundreds of thousands of Egyptians celebrate after Egytptian Defense Minister Abdel Fattah al-Sisi's speech announcing The Egyptian army toppling Islamist President Mohamed Morsi in Egypt's landmark Tahrir square on July 3, 2013 in Cairo, Egypt. Opposition leader Mohamed ElBaradei and the heads of the Coptic Church and Al-Azhar -- Sunni Islam's highest seat of learning -- will unveil an army roadmap for Egypt's future after President Mohamed Morsi, state television said. AFP PHOTO / KHALED DESOUKI               TOPSHOTSKHALED DESOUKI/AFP/Getty Images

Khaled Desouki/AFP

Fireworks light up the sky in Cairo’s Tahrir square on Wednesday night as hundreds of thousands of Egyptians celebrate after defense minister Abdel Fattah al-Sisi announced the army’s toppling of Islamist president Mohamed Morsi. Opposition leader Mohamed ElBaradei, the heads of the Coptic Church and Al-Azhar, Sunni Islam’s highest seat of learning, will unveil an army roadmap for Egypt’s future, state television said.