Romanian high school students dance in Opera Square, Timisoara on May 20, 2011. Thousands of high school pupils on May 20 gathered to dance the quadrille in several cities accross South Eastern Europe, hoping to beat the world record of the largest synchronised dance. In Timisoara, Western Romania, about 1,500 high school pupils dressed in black and white and carrying sunshades executed a quadrille, an historic dance very popular in Europe in the XIXth century, on one of the main central squares.

Pat "Deep Dish" Bertoletti, Thomas Harrison, and Chris Floyd, left to right, tackle the Armour Pepperoni with Cheese Eating Competition at Rounder's Pizzeria in Austin, Texas on Thursday, May 19, 2011. Bertoletti won the event by eating 252 slices, or 2.25 pounds, in 6 minutes.

Medical personnel check the physical conditions of Chen Kecai during a cold endurance competition against Jin Songhao, right, on the Tianmen Mountain in Zhangjiajie, Hubei province, Jan. 3. Chen and Jin competed by staying in a glass container filled with ice wearing only a pair of shorts. Jin won the competition with 120 minutes in the container, which outscored Chen's 118 minutes. Chen set the Guinness record for the longest time spent in direct full body contact with ice on March 14, 2010 with 1 hour 48 minutes 21 seconds, local media reported.