Emma, a 17 year-old model, sits on a hot air balloon as she wears the wedding dress with the longest tail in the world during a Guinness World Record attempt in Bucharest, March 20, 2012. The 1.7 miles long (2,750 meters) train broke a previous record of 1.5 miles (2,488 meters). It is made of 4,700 meters of material using 1,857 needles, taking 100 days to make.
- It's time: Hillary Clinton and Donald Trump will face off tonight at 9 p.m. ET in the first of three US presidential debates.
- Inside the final days of the FARC, Colombia's 50-year-old rebel group, which is on the verge of signing a peace treaty with the government.
- Golf legend Arnold Palmer has died at 87. Known as "The King," his unusual style and charisma changed the game.