This is pretty cool. Take 30 days off from work to visit every MLB stadium (30 stadiums in 30 days). Check out the link. They do the work for you:
1. Choose a starting stadium by clicking on a city on the map.
2. That team's home schedule will appear below the map. Select a highlighted date.
3. The algorithm will build your 30-day road trip and a detailed itinerary will appear below. Click reset to try a new start date or stadium. (Warning: Some segments will show a path that goes over water. Please do not drive in the ocean.)
Everyone has 30 days of vacation this summer, right?