Everything I've read says Lucid Dreams are limitless... but aren't they limited by your experience?

Say... I've never been to Egypt before. I've never felt the sands there between my toes, or how hot the sun is there. In fact, besides the pyramids and all that, I dunno what it looks like over there. Could I go to an accurate Egypt, or will it be Egypt, as I would imagine it to be?

Thats just one example. But is it true that Lucids are limited by your own experiences in real life?