I am planning to visit Berlin and Munich from Frankfurt from 23rd sept to 25 sept. I know this is really tight trip, but i have only one weekend and i am ok with covering only the main attractions. I will be using flixbus in all 3 nights and will not be staying in the city (Berlin or Munich) on saturday night so as to utilize the time. I would like to spend as little as possible. For places to visit, i like to experience things like grand architectures, nice landscapes or something unique. I do not like most of the museums and ok to skip smaller attractions like fountains, churches etc. Here are a few suggestions i would like to have on this plan.
1) Is this a dumb idea to try and cover both cities in one weekend ? The days cannot be extended, but if suggested, i will spend the 2 days in a single city.
2) Which sequence should i do ? FRA-BERLIN-MUNICH-FRA or FRA-MUNICH-BERLIN-FRA ? Flixbus time seems to be the same but the prices for this week are confusing me. Please consider the fact that i must reach back to FRA Monday early morning.
3) Any Deutsche bahn pass for the weekend that can allow me to travel all over Germany ? The cost is the factor i chose flixbus. Seems like the total transportation (flixbus + local single day pass) will cost me something around 90-100 EUR.