With Democrats in control of the White House and Congress, Republicans face profound questions about what the party stands for without Donald Trump in charge.
Trump, who departed the White House shortly after 14:00 CET with his wife, Melania, said it had been "a great honour, the honour of a lifetime" to serve as president.
Trump's statue "cost a lot of hair", laughs the museum's director-general.
The executive order will take 30 days to come into effect and was one of 17 signed by Biden on his first day in office.
Rival heavily armed groups were gathering near government buildings in Richmond, Virginia, ahead of planned protests against Wednesday's inauguration of President-elect Joe Biden in Washington. Lobby Day brings Second Amendment protesters to Richmond every year.
A six-metre-high blimp depicting a nappy-wearing baby Donald Trump has been added to the Museum of London's collection.
Melania Trump said the past four years have been "unforgettable" and urged Americans to "be passionate in everything you do but always remember that violence is never the answer and will never be justified".
The events of January 6 were not a one-off. They were the culmination of various pro-Trump factions coming together "under his banner" for a common cause, experts tell Euronews.
The move comes following the events at the Capitol, after which several on and off-duty police officers and active military personnel were arrested for participating in the siege.
The new president plans to end Trump's restriction on immigration to the US from some Muslim-majority countries, move to rejoin the Paris climate accord and mandate mask-wearing on federal property and during interstate travel.