I got a lot of good info from this site:
If you have time, I´d recommend You to visit Arukula small borough, it´s about 20 km from Tallinn and you get there by train easily. There is Aruküla Rock (http://en.wikipedia.org/wiki/Aruk%C3%BCla_Rock) and Aruküla manor (http://en.wikipedia.org/wiki/Aruk%C3%BCla_manor).