As with the rest of the Bakers Dozens, build a list of 13 items on the given topic. The player who posts the 13th answer must start a new topic (in bold type) and post the first answer of the new list as well.
Note: this category will [ideally] cover topics not covered in the other Bakers Dozen games ...
Last few topics:- Thirteen anthropomorphic characters from kids' books
- Thirteen provinces of the Roman Empire
- Thirteen cathedrals in thirteen different countries
- Thirteen famous waterfalls
Current list: Thirteen objects in our solar system
1. Mercury
2. The Sun