While there are many good places to start, I would recommend you start with creating Heroes application on the official doc. Believe me, there is no other detailed explanation for an application. Link(https://angular.io/docs/ts/latest/tutorial/)

After you have completed that. I would recommend you checking out some open source applications out there. 1. AngularSpree(E-Commerce application) https://github.com/aviabird/angularspree 2. Yatrum(Travel application) https://github.com/aviabird/yatrum 3. Echoes(Music player) https://github.com/orizens/echoes-ng2