Did once layover in Aswan. Arrived at 2 am in the hotel after a long day. Hotel was dirty, no curtains and was just next to a mosque. Guess what happened at 4 am??
Other layover was in Sana'a, Yemen. Atmosphere was very tensed. People demonstrating on the streets. I really felt unsafe and was so happy to leave that country. A few days later some riots started. Never again.