Saw this recently and thought it was a cool way of conceptualizing large numbers:
A million seconds is 11 days. A billion seconds is 32 years. A trillion seconds is 32,000 years.
There’s also the super-awesome MegaPenny Project:
Visualizing huge numbers can be very difficult. People regularly talk about millions of miles, billions of bytes, or trillions of dollars, yet it’s still hard to grasp just how much a “billion” really is. The MegaPenny Project aims to help by taking one small everyday item, the U.S. penny, and building on that to answer the question: “What would a billion (or a trillion) pennies look like?”