This is a little side project that visualizes your TripIt flight history from 2015 using treemaps, like the one you see in the background (see an example). If you have any problems operating it, please email me at email@example.com and include the full URL.
Enter your email address below. In the following page, check "Grant Travel Report access to my TripIt data".
Disclaimer: I haven't spent time making this thing have bulletproof security. If you're a secret agent, you might not want to use this. Then again you shouldn't be using TripIt anyway :)