I guess it's common knowledge by now that the towers are a part of the Notum Wars expansion pack.

To fastest get to a tower - use the Controller Exit in the grid. We currently have 5 towers in various ql's.

Here's a list of them and what the tower areas look like. However, please have in mind that the amount of towers can change pretty quick, and I'm not going to keep these images updated. The pics here are just so you'll get a better picture of how big the areas are, and their shape.