In some parts of the Great Wall of China, sticky rice was added to the mortar to make it stronger. South Africa is home to the Bloukrans Bridge, where you can participate in the world's highest bungee jump. It's over 700 feet high! The most expensive dessert in the world is the Frrrozen Haute Chocolate ice cream sundae, available from Serendipity 3 in New York City for $25,000. At any given moment, there are approximately 61,000 people in the sky (in planes, not just, like, floating) above the United States. Tourists visiting the small Himalayanh nation of Bhutan must pay a visitor fee of $250...per DAY. The Albuquerque Balloon Fiesta is the largest gathering of hot air balloons in the world, with hundreds of balloons taking flight simultaneously.