A look at the best news photos from around the world.
April 21, 2016
![Queen Elizabeth II meets well wishers during a walkabout close to Windsor Castle as she celebrates her 90th birthday, in Berkshire, England.](https://gdb.voanews.com/5084a069-68a5-440b-8f92-44971a8b7c47_w1024_q10_s.jpg)
1
Queen Elizabeth II meets well wishers during a walkabout close to Windsor Castle as she celebrates her 90th birthday, in Berkshire, England.
![A rowing team passes the Memorial Bridge during practice on the Potomac River early in the morning in Washington.](https://gdb.voanews.com/f4e8d42c-ad85-4a9f-a40e-90eba4891f02_w1024_q10_s.jpg)
2
A rowing team passes the Memorial Bridge during practice on the Potomac River early in the morning in Washington.
![Pakistani policeman stand guard as a health worker administers polio drops to a child during a polio vaccination campaign after a day after gunmen staged an attack in Karachi.](https://gdb.voanews.com/0a40e686-4a24-4798-ab94-fe205e52e11b_w1024_q10_s.jpg)
3
Pakistani policeman stand guard as a health worker administers polio drops to a child during a polio vaccination campaign after a day after gunmen staged an attack in Karachi.
![The King's Troop Royal Horse Artillery fire a 41-gun Royal Salute in Hyde Park, in London. The salute marks the 90's birthday of Britain's Queen Elizabeth II.](https://gdb.voanews.com/bb7a5875-44d3-4d40-9fcd-d70a13f03e25_w1024_q10_s.jpg)
4
The King's Troop Royal Horse Artillery fire a 41-gun Royal Salute in Hyde Park, in London. The salute marks the 90's birthday of Britain's Queen Elizabeth II.