If you are not smart, you are food.

Tour guide: This is the longest bridge in Cairo and it took 6 years to be finished. 
Tourist : Back home we have a bridge the same length and it was finished in a year and half.
Tour Guide: This is Cairo tower, and it took 5 years to be finished. 
Tourist : We have a tower back home and it is taller and it took 2 years only to be finished. 
Tour guide: The museum of Cairo and it was built in 3 years .
Tourist : You know they built the museum of ...... in 2 years only. 

Scene # 2 ( by the pyramid )

Same tourist:  Oh WOW what is this ?
Tour guide : I don't know , I was here yesterday and it wasn't there.