Day trip to Aachen (Centre Charlemagne)

Let's go see the Centre Charlemagne in Aachen!
This is our plan for the day:
9:10 - Meet on the platform the RE4 is departing from in section D.
9:21 - Take RE4 to Aachen
10:37 - Arrive in Aachen Hbf, we`ll walk to the Centre Carlemagne Museum
Everyone should buy their own ticket to the museum.
14:00 - Lunch at a local restaurant

After lunch, we can still see the Aachen Cathedral, the Couven Museum, or the Aachen Cathedral Treasury

17:21 - Take RE4 back to Düsseldorf
18:39 - Arrive in Düsseldorf