The Seminars will be held at Mathematikon A (INF 205) SR8.
The Lunch Seminars will be held in the new STRUCTURES building, which is the EINC building in INF 225a (as google maps marks it - the official building number is 245 or 6245).
STRUCTURES has a nice common room on the third floor which is ideal for hosting the Lunch Seminar. As it is not so easy to get into the building here are some directions:
The new building is located south-west of the Mathematikon A (it is the corner building when looking south). The main doors of the building are locked, which is why we have to use the entrance on the south of the building. For this entrance one doesn’t need a key; there is a (big) button that opens the door. Facing the door, there is an elevator which one is ought to take to the 3rd floor. When leaving the elevator turn right and follow the corridor, you will find the common rooom at the end. In case you rather take the stairs, when entring the EINC building from the south, follow the corridor until the end - the last door to the right leads to a stair case.