A couple dressed as a bride and groom took part in the Maldon Mud Race in Maldon, Essex, a tradition that began in 1973.
Betty, a Teacup Chihuahua, showed off her Princess Leia costume during Sci-Fi London.
A girl danced in traditional Mexican attire during a Cinco de Mayo parade in Denver, CO.
Students listened during President Barack Obama's commencement address to the graduating class of Ohio State University in Columbus, OH.
Bikini-clad women took part in the sixth Mass Bikini celebration at the Chimelong Water Park in the Guangdong Province of China.
Little girls wore inflatable dolphins during the Stilton Village Festival cheese rolling competition in Stilton, England.
A Dutch soldier gave a farewell kiss before departing to Afghanistan from the airport in Eindhoven.
Two women soaked up the sun during a heat wave in central London.
People sprayed water on a woman in the Ukrainian city of Lviv to celebrate "Clean Monday," aka "Wet Monday," a Christian tradition that takes place the day after Orthodox Easter.
A woman took a photo of an elderly woman in a poppy field at Showa Memorial Park in Tokyo, Japan.
An Indonesian woman donned an ornate traditional costume during the 2013 Arabian Travel Market exhibit in Dubai.
Donning white fur and a glittering crown, Queen Elizabeth II arrived at the state opening of Parliament at the Houses of Parliament in London.
Gina DeJesus's "missing" sign was surrounded by balloons outside her family's home in Cleveland, OH. Gina was one of three missing women who were kidnapped and held captive for more than a decade before managing to escape.
A woman snapped a pic of a lightbulb-themed art installation in Beijing, China.
A Monarch butterfly hung from its cocoon during the first day of the "Butterflies and Blooms" exhibit at the Conservatory of Flowers in San Francisco's Golden Gate Park. It features more than 20 species of North American butterflies.
Michelle Obama waved to guests at an award ceremony at the White House. The first lady presented the 2013 National Medal For Museum and Library Service to 10 institutions.
Glass shapes were displayed at the Collect art fair at Saatchi Gallery in London.
Prince Harry stood with First Lady Michelle Obama during an event honoring military families at the White House. Harry is on tour in the US taking part in charitable events, specifically those that support injured service personnel.