"Ask around Frankfurt and find the 'Slice of Cake,' the local nickname for a place called this because of its daring architectural design. Get a photo of you in front of it, and find out who designed it. While you're there, you might as well go in and tour it too."
It would have been nice if the person at the front desk had told us the Museum für Moderne Kunst (MMK) was only open for another hour *before* we bought our full price tickets (around 6 Euro each), but then we might not have seen the coolest interior of a museum that I've ever seen. Viennese architect, Hans Hallein, can be thanked for that. Sure the exterior is triangular and resembles a "slice of cake," but the interior is a large complex of lines that play with perspective, numerous balconies, small compartments, enormous spaces, bridges, levels, and passages. There isn't a lot of art here (but there *was* a piece by Cincinnati's own Jim Dine), but anything more than the 200+ pieces we saw would take away from the experience of this minimalist funhouse. It's a worthwhile experience even if you arrive in the last hour.