Revelers on the Mall in London watch Britain Queen Elizabeth II appear on the Buckingham Palace balcony as part of the four-day Diamond Jubilee celebration to mark the 60th anniversary of the Queen's accession to the throne. (AP)
Ukrainian riot police officers clash with opposition activists during a protest rally in Kiev. Several thousand flag-waving activists staged a noisy protest outside the parliament building, protesting the bill that would keep Ukrainian as the only official language in the country, but Russian could be used in courts, hospitals and other institutions in Russian-speaking regions. (AP)
A man sits in front of a mural depicting people who died during Egypt's revolution at Tahrir Square in Cairo. Activists urged Egyptians to turn out for a big protest on Tuesday. (Reuters)
Members of the Afghan Security Group, a local militia force, watch over the Kunar River Valley from Observation Post Mustang in Afghanistan's Kunar Province. (Reuters)
Members of a Chinese honor guard prepare for the arrival of Uzbekistan's President Islam Karimov, who will attend the Shanghai Cooperation Organization summit, at the Beijing Capital International Airport in Beijing. (AP)
Kim Jung-young bows at the gravestone of her husband Ahn Myung-ho, who died during the 1950-1953 Korean War, at the National Cemetery in Seoul on the eve of South Korea's Memorial Day (AP)
A worker sorts used plastic bottles at a recycling center in Mumbai, India. World Environment Day is celebrated June 5 every year by the United Nations to stimulate global awareness on environmental issues. (AP)
Children use cardboard eclipse glasses as they prepare to watch the transit of Venus in Allahabad, India. Stargazers around the world are setting up special telescopes and passing out cardboard glasses to view the once-in-a-lifetime celestial cameo of Venus passing in front of the sun. (AP)
A cleaner wears a face mask as she works at Beijing's Tiananmen Gate. A senior Chinese official demanded on Tuesday that foreign embassies stop issuing air pollution readings, saying it was against the law and diplomatic conventions, in pointed criticism of a closely watched U.S. embassy index. The level of air pollution in China's capital varies, but a cocktail of smokestack emissions, vehicle exhaust, dust and aerosols often blankets the city in a pungent, beige shroud for days on end. (Reuters)
Women drink cups of Kirin's frozen beer at a beer garden in Tokyo. While Japan struggles to generate enough electricity to keep air conditioners humming through its steamy summer, brewer Kirin is offering relief - a pint of ice cold draft beer topped with frozen froth. (Reuters)
Canadian sea otters swim at the zoo in Amnéville, eastern France. (AFP)
