Germany: Must-do's?

I'm going to be in Germany in late August and was wondering if anyone had any cool must-do's or see's in the Frankfurt area. I'll be travelling with someone slightly familiar with the country, but who is gimpy and slightly allergic to unnecessary-fun (tourist traps, wine tasting, sight-seeing). So ideal suggestions would be cool destinations-- like the ultimate flea-market or surplus stores or used book districts. Super ideal would be "the museum of werewolf costumes and wolf puppets" (but I'm not holding my breath). Unfortunately, the one big festival around that time-- Museumsuferfest Frankfurt. -- occurs directly opposite the event I'm going over for. The "Fairy-Tale Road sounds neat-- but that's for a longer trip. Also falls under "unnecessary-fun". We have maybe a day or two extra that we could add. Anything great in the (stage) theaters in Frankfurt this summer? Anything? Hello?

Germany: Must-do's?

I'm going to be in Germany in late August and was wondering if anyone had any cool must-do's or see's in the Frankfurt area. I'll be travelling with someone slightly familiar with the country, but who is gimpy and slightly allergic to unnecessary-fun (tourist traps, wine tasting, sight-seeing). So ideal suggestions would be cool destinations-- like the ultimate flea-market or surplus stores or used book districts. Super ideal would be "the museum of werewolf costumes and wolf puppets" (but I'm not holding my breath). Unfortunately, the one big festival around that time-- Museumsuferfest Frankfurt. -- occurs directly opposite the event I'm going over for. The "Fairy-Tale Road sounds neat-- but that's for a longer trip. Also falls under "unnecessary-fun". We have maybe a day or two extra that we could add. Anything great in the (stage) theaters in Frankfurt this summer? Anything? Hello?

Germany: Must-do's?

I'm going to be in Germany in late August and was wondering if anyone had any cool must-do's or see's in the Frankfurt area. I'll be travelling with someone slightly familiar with the country, but who is gimpy and slightly allergic to unnecessary-fun (tourist traps, wine tasting, sight-seeing). So ideal suggestions would be cool destinations-- like the ultimate flea-market or surplus stores or used book districts. Super ideal would be "the museum of werewolf costumes and wolf puppets" (but I'm not holding my breath). Unfortunately, the one big festival around that time-- Museumsuferfest Frankfurt. -- occurs directly opposite the event I'm going over for. The "Fairy-Tale Road sounds neat-- but that's for a longer trip. Also falls under "unnecessary-fun". We have maybe a day or two extra that we could add. Anything great in the (stage) theaters in Frankfurt this summer? Anything? Hello?