Members of Kenya's provincial administration salute during Mashujaa Day (Hero's Day) celebrations at the Nyayo National Stadium in Nairobi, October 20, 2014. The national holiday commemorates those who had taken part in the country's struggle for liberation.

Thomas Mukoya /Reuters

Members of Kenya’s provincial administration salute during Mashujaa Day (Hero’s Day) celebrations at the Nyayo National Stadium in Nairobi on Monday. The national holiday commemorates those who had taken part in the country’s struggle for liberation.

A man walks past a graffiti of Sausage, a stray dog, painted by street artists Smart, N_Grams and Martinez in Athens October 20, 2014. The ginger mongrel called "Loukanikos" in Greek, who became famous for appearing at anti-austerity protests and barking at riot police at the height of Greece's debt crisis, has died of a heart attack, local officials said on October 9, 2014.

Alkis Konstantinidis/Reuters

A man walks past a graffiti of Sausage, a stray dog, painted by street artists Smart, N_Grams and Martinez in Athens on Monday. The ginger mongrel, called Loukanikos, found fame after appearing at anti-austerity protests and barking at riot police at the height of Greece’s debt crisis, has died of a heart attack

Students from St Andrew's University indulge in a tradition of covering themselves with foam to honour the 'academic family' on October 20, 2014, in St Andrews, Scotland. Every November the 'raisin weekend' which is held in the university's Lower College Lawn, is celebrated and a gift of raisins (now foam) is traditionally given by first year students to their elders as a thank you for their guidance and in exchange they receive a receipt in Latin.

Jeff J Mitchell/Getty Images

Students from St Andrews University indulge in a tradition of covering themselves with foam to honour the ‘academic family’ on Monday, in St Andrews, Scotland

People walk beside the Pacific Amusement Park as the sun sets on Santa Monica beach, California on October 19, 2014.  The pier which will soon celebrate its 100th year of operation, has been the setting for many famous movies such as 'The Sting', 'Forrest Gump' and 'Iron Man' and is a major tourist attraction in Los Angeles.

Maek Ralston/AFP

People frolic beside the Pacific Amusement Park as the sun sets on Santa Monica beach, California. The pier, which will soon celebrate its 100th year, has been the setting for films such as The Sting, Forrest Gump and Iron Man.

Indonesian celebrate the inauguration of Indonesian President Joko Widodo in Solo, Central Java, Indonesia, 20 October 2014. Indonesia's newly inaugurated President Joko Widodo urged Indonesians to unite and work together. Widodo said his government aimed to make Indonesia 'politically and economically independent' but acknowledged tough tasks ahead.

Mohammad Ali/EPA

Indonesians celebrate the inauguration of President Joko Widodo in Solo, Central Java, Indonesia on Monday.

A Lufthansa aircraft lands at the Frankfurt, central Germany, airport Monday morning. The Vereinigung Cockpit union announced a 35-hour strike at Lufthansa's short-haul fleet starting mid-Monday, the latest in a string of walkouts over retirement benefits.

Fredrik von Erichsen/dpa/AP

A Lufthansa aircraft lands at the Frankfurt, central Germany, airport Monday morning. The Vereinigung Cockpit union announced a 35-hour strike at Lufthansa’s short-haul fleet starting mid-Monday, the latest in a string of walkouts over retirement benefits

A Kurdish refugee child from the Syrian town of Kobani holds a bread in a camp in the southeastern town of Suruc, Sanliurfa province on October 20, 2014. The U.S. military said it had air-dropped arms to Syrian rebels fighting Islamic State militants near Kobani on Sunday in what appeared to be the Pentagon's first public acknowledgment it has delivered lethal aid to the rebels.

Kai Pfaffenbach/Reuters

A Kurdish refugee child from the Syrian town of Kobani holds a bread in a camp in the southeastern town of Suruc, Sanliurfa province on Monday

Indian schoolchildren perform yoga at Delhi Public School in Hyderabad, India, Monday, Oct. 20, 2014. Around 5,000 people including students, teachers and parents performed seven yogic postures, following a religious prayer for world peace.

Mahesh Kumar A/AP

Indian schoolchildren perform yoga at Delhi Public School in Hyderabad, India on Monday. Around 5,000 people including students, teachers and parents performed seven yogic postures, following a religious prayer for world peace

Hurricane Gonzalo was taken from the International Space Station by European Space Agency astronaut Alexander Gerst.  The resort island chain of Bermuda braced October 17, 2014 for a hit from Hurricane Gonzalo, forecast to produce flooding, strong winds and a life-threatening storm surge. The capital Hamilton was eerily quiet as people retreated to the safety of their homes. Schools, businesses, grocery stores and government offices all closed early Thursday, and many people boarded up the windows of their homes and placed sandbags outside in preparation. As of early Friday, Gonzalo's winds were whirling at 125 miles (200 kilometers) per hour, with even stronger gusts, the US National Hurricane Center said. Gonzalo has already killed one person in the Caribbean and triggered a hurricane warning for the British overseas territory, which is home to around 60,000 people.

Alexander Gerst/NASA/AFP

Hurricane Gonzalo was taken from the International Space Station by European Space Agency astronaut Alexander Gerst. The resort island chain of Bermuda braced on Friday for a hit from Hurricane Gonzalo, forecast to produce flooding, strong winds and a life-threatening storm surge

Fallow deer challenge each other during the rutting season on October 17, 2014 in Bradgate Park, Leicestershire, United Kingdom.  Autumn sees the start of the 'Rutting' season, stags can be heard roaring and barking in an attempt to attract females known as bucks. The larger males can also be seen clashing antlers with rival males.

Michael Regan/Getty Images

Fallow deer challenge each other during the rutting season on Friday in Bradgate Park, Leicestershire, United Kingdom