sale of a vacation lot, do I report it and if so where?

Yes. 

 If it was your second home or a lot, it goes on Sch D.

1. Go to income section 
2. click on Add More Income
3. scroll down to Investment Income
4. Show more
5. Stocks, Mutual Funds, Bonds, Other
6. Start:  Continue answering the questions.
   1. Yes,
   2. 1099-B - no,
   3. one sale at a time and the boxes appear for your entries.