Only once. It wasn't a very pleasant experience, and it was a distance from home anyway.

[He has a good memory. Sometimes, things mesh together... but a moment of sorting things out usually does the trick. The human mind isn't naturally meant to hold a century and a half of memories. Not that he's a normal human anymore, but.]

This place has quite a few surprises, really! For example, back at home, I never would have been able to experience the Great Wall in person, or any of the other fine ruins that have been transported here.

[... though he has to agree. It is about much more than just geography and structures.]

Oh, there is. Have you never been to the clinic?