Tuesday: The day in photos

A window cleaner at Barajas International Airport in Madrid uses a mask to help stave off infection. Spain’s Health Ministry confirmed a second case of swine flu in the country and raised the number of people under observation to 32.  (Arturo Rodriguez / Associated Press)

A duck gliding under a bridge in a park provides a pleasant diversion in Warsaw, where Polish Prime Minister Donald Tusk held talks with his British counterpart, Gordon Brown.  (Janek Skarzynski / AFP/Getty Images)

An oil painting captures a visitor’s attention at Beijing’s Contemporary Art Fair. The weeklong art exhibition showcases the works of hundreds of Chinese and International artists.  (Liu Jin / AFP/Getty Images)

An Israeli woman is among those paying tribute at the Armored Corps memorial to fallen soldiers after a ceremony marking Memorial Day near Jerusalem. Israel came to a standstill for two minutes in remembrance of those killed.  (Sebastian Scheiner / Associated Press)

A yeoman at Westminster Abbey in London, where Queen Elizabeth II attended a service to commemorate the 500th anniversary of the Founder of the Queen’s Body Guard of the Yeomen of the Guard. The Yeomen of the Guard have a purely ceremonial role.  (Carl De Souza / AFP/Getty Images)

A Bangladeshi worker checks a new oil lamp at a workshop on the outskirts of Dhaka, the capital. Bangladesh faces a power shortage, and authorities are diverting gas supplies to power plants to ease the problem.  (Pavel Rahman / Associated Press)

An activist in Braunschweig, northern Germany, protests legal efforts by U.S. biotech giant Monsanto to end Germany’s ban on a type of genetically modified corn produced by the firm.  (Nigel Treblin / AFP/Getty Images)

Colleagues pray at the security headquarters in Istanbul, Turkey, during a funeral ceremony for police officer Semih Balaban. He was killed Monday during clashes between Turkish police and a leftist militant.  (Ibrahim Usta / Associated Press)

A teenager rides a skateboard at Victory Park in Moscow. Russia will celebrate Victory Day, in honor of the end of World War II, on May 9.  (Dmitry Kostyukov / AFP/Getty Images)