Some are in it just for the money, others to help buy a meal. Then there are those who trade for fun or to spend time among friends. Millions of investors – pensioners, security guards, high-school students – dominate China's stock markets, conducting about 80 percent of all trades. Retirees gather in brokerage houses dotted around China also to enjoy some company and savour the air conditioning on hot days. Some start as young as 13, trading from home with an eye on future careers in finance. Winning isn't guaranteed. This year, among the most turbulent in China's financial history, its stock markets more than doubled in the six months to May, only to crash amid concerns that growth in the country, which makes everything from cars to steel, is slowing faster than previously thought. (Photo by Aly Song/Reuters)

An exhibition at London’s Horniman Museum by three photographers from Brazil’s largest favela, Maré, shows us their unique vision of Rio de Janeiro. Here: Leisure day on the Avenida Brasil. (Photo by Elisângela Leite/Horniman Museum)

“My artwork shows, with the language of sculpture, the essence of matter and tries to reveal with the work, the hidden life within.”

New York-based Latvian photographer Kaija Straumanis has a series of funny, well-timed images that shows various objects being thrown at her head.

FaceResearch.org, a site run by two psychologists at the University of Aberdeen in Scotland, features software that can average together faces from thousands of photos. These images purportedly show the average face of women from 40 different nationalities.

A model walks the runway at the Elie Saab fashion show during Paris Fashion Week on March 9, 2011 in Paris, France.

Socialite Kathy Hilton attends the Prudential Financial Grand Prix Hamptons Classic Horse Show August 31, 2003 in Bridgehampton, New York.