The US Debt Clock [usdebtclock.org] shows how the inverse of a visualization can be as compelling and engaging, as it simply lists a huge collection of rattling statistics related to the US debt in real-time without any graphical translation. Not sure if any useful insight can be made, however.
The clock can be altered to show state-specific or country-specific debt-related statistics. Individual numbers can be clicked to reveal a more detailed explanation of the respective parameter.
See also US National Debt Clock