The fighting between Israel and Hamas was the most intense since a 50-day war in the summer of 2014.
The queen, who did not wear a mask, was escorted by her son, Prince Charles.
Hamas and other armed groups fired rockets toward Israel in an escalation of the conflict sparked by weeks of tensions in Jerusalem.
Hangzhou Safari Park denied the escape even after surveillance video caught one of the large cats roaming a nearby residential area.
The Sunday Times reported that Prince Michael of Kent was willing to use his royal status for personal profit and to seek favors from Vladimir Putin.
It's the latest in a series of confrontations between Israeli police and Palestinians that threatened to push the contested city toward wider conflict.
The roughly 100-foot long rocket stage is among the biggest space debris to fall to Earth.
The unrest came a day after violence in which Palestinian medics said more than 200 Palestinians were wounded in clashes around the Al-Aqsa mosque.
No one immediately claimed responsibility for the attack.
Juliet has visited daily for the last two decades. Some think she's indulging a forbidden romance. Others put it down to loneliness.