Two independent states, Vatican City and San Marino, are located entirely within the borders of Italy. The longest regular commercial flight is from Singapore to Newark Airport in New Jersey. The flight is 19 hours long - non-stop! 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. The busiest airport in the world is the Hartsfield-Jackson Atlanta International Airport, with 107 million passengers passing through in 2018. A suite on Singapore Airlines can cost up to $23,000...but you get a literal sky bed for that price, so. Worth it, maybe? At any given moment, there are approximately 61,000 people in the sky (in planes, not just, like, floating) above the United States.