Mainland Chinese visitors walk past casinos in Macau, Oct. 10. One third the size of Manhattan, Macau ranks as the most densely populated place in the world. Last year it welcomed 28 million visitors, or more than the population of Australia.

Drivers and motorcyclists stop in front of a traffic light on Avenida de Horta e Costa, a main street in Macau's residential district, Oct. 11.

A girl stays at home inside an old block at a poor residential area in northern Macau, near the border checkpoint with the neighbouring city of Zhuhai, Oct. 10.

Performers with painted bodies arrive for the start of the second day of the Cheltenham Horse Racing Festival in Gloucestershire, western England, on March 14. The genteel Georgian town of Cheltenham will become the centre of the universe for jump racing enthusiasts as it plays host to the 2012 National Hunt Festival.

Horses jump during the JLT Specialty Handicap Steeple Chase race on the first day of the Cheltenham Racing Festival in Gloucestershire, western England, on March 13.

Ladies arrive for 'Ladies Day' at the Cheltenham horse racing Festival in Gloucestershire, western England, on March 14, 2012. The genteel Georgian town of Cheltenham will become the centre of the universe for jump racing enthusiasts as it plays host to the 2012 National Hunt Festival.

Horse racing enthusiasts watch a race on Champion Day at the Cheltenham Festival 2012 on March 13, in Cheltenham, England. Tens of thousands of racing enthusiasts are expected at the four-day festival which ends on Friday and is seen by many as the highlight of the jump racing calender.