We've picked the best pictures of the day, from Trump leaving the White House for the final time to Biden's first speech as US president.
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Biden later pledged to be "a president for all Americans".
Security across France tightens after a suspected Islamist militant stabs three people to death.
Religious history was made in Abu Dhabi last year, when the Document on Human Fraternity was signed in February by Pope Francis and Dr. Ahmed Al Tayeb, the Grand Imam of Al-Azhar.
In the spirit of inclusion and appealing to as broad an audience as possible, once rarely seen and sacred artifacts, are now accessible to many in museums and galleries around the world.
As France mourns the killing of three people at a church in the city, this is what we know so far.
Three people were stabbed to death in Nice in what France says was an "Islamist terrorist attack".
President Ilham Aliyev vows to keep fighting in an upsurge of the conflict over Nagorno-Karabakh.
The government also announces a ban on mink farms and on keeping killer whales in captivity.
The Home Office said the vessels were carrying 48 people after Border Force intercepted them.