However, once you accept these facts, Cairo has lots to offer the visitor; its main museum is an essential part of your vacation experience and its street life is a sure sign that you have come to a totally different culture.
The museum in Cairo isn't anything special. 
mnli hypothesis: The museum in Cairo isn't anything special.  premise: However, once you accept these facts, Cairo has lots to offer the visitor; its main museum is an essential part of your vacation experience and its street life is a sure sign that you have come to a totally different culture.