There are several walkthrough aviaries with storks. But with large and potentially dangerous ones -?
I've always wondered how these still work out. A lot of large storks (and cranes and herons) are certainly capable of inflicting serious damage if harassed or aggressive. I've been in walkthrough exhibits with Storm's and Abdim's storks as well as Gray-crowned cranes before and didn't really feel like they were an issue. I've been fairly close to species like Marabou and Saddle-bills, and certainly have a healthy respect for them.