Now that's how you celebrate a birthday! Those photos are gorgeous, I love how you capture the profile with clouds behind the pyramid.
By the way, you can't go wrong with carrying an umbrella to avoid the sun. I used to poke fun at people while I was in China one summer until I realized just how useful they are for shade. I will never travel without one now.
Great post, cheers to your sister! And I hope you both got to indulge in all the local cuisine!