2. Twelve grapes, Spain
While Americans watch the ball drop in Times Square on New Year's Eve, the people of Spain watch the broadcast from Puerta del Sol in Madrid, where revelers gather in front of the square's clock tower to ring in the New Year.
Those out in the square and those watching at home partake in an unusual annual tradition: At the stroke of midnight, they eat one grape for every toll of the clock bell. Some even prep their grapes -- peeling and seeding them -- to make sure they will be as efficient as possible when midnight comes.
The custom began at the turn of the 20th century and was purportedly thought up by grape producers in the southern part of the country with a bumper crop. Since then, the tradition has spread to many Spanish-speaking nations.
Those spending New Year's Eve in Madrid should head over to the Puerta del Sol before midnight. It's a lively square, surrounded by bars, restaurants and shopping, so it's a good place to be when the new year comes.