If I could eat things I'd love to go back to Ancient Rome and chow down on some silphium.

If I couldn't maybe I'd hang out around an early Christian church and see how those services went.

But really? I mean I can't prove any of this to add to the academic knowledge, and what if I really love silphium and can never have it again?, so I'd probably go somewhere I can see now gone relatives alive and happy. Maybe my parent's wedding.