Almost 200,000 flags were placed on the National Mall outside the Capitol building for Joe Biden's inauguration.
With crowds not allowed to attend the event, the Presidential Inaugural Committee announced earlier this month that the art display would be installed to represent every US state.
The 'Field of Flags' instalment stretches from 3rd Street to 13th Street in downtown Washington, D.C.
Speaking about the display, Tony Allen, CEO of the Presidential Inaugural Committee, said: "This inauguration marks a new chapter for the American people - one of healing, of unifying, of coming together, of an America united.
"It is time to turn the page on this era of division. The inaugural activities will reflect our shared values and serve as a reminder that we are stronger together than we are apart, just as our motto 'e pluribus unum' reminds us - out of many, one."
Speaking during his inauguration ceremony, during which he was sworn in as the 46th President of the United States, Mr Biden assured the country that 'democracy had prevailed' after a troubling few weeks and months.
He said: "A new America has risen to the challenge today. We celebrate the triumph not of a candidate, but of a cause, the cause of democracy.
"The people, the will of the people has been heard and the will of the people has been heeded.
"We've learnt again that democracy is precious. Democracy is fragile. At this hour, our friends democracy has prevailed."
Mr Biden went on to urge people to come together and dismiss the tide of extremism and racism, and pledged to work 'as hard for those who didn't vote for him as for those who did'.
He said: "My whole soul is in this, bringing America together.
"I ask every American to join me in this cause. To fight the foes we face: anger, resentment and hatred, extremism, lawlessness, violence, disease, joblessness and hopelessness.
"With unity, we can do great things, important things, we can right wrongs.
Kamala Harris also made history today when she was sworn in as the 49th Vice President, and the first woman to do so.
Breaking with tradition, the outgoing President Donald Trump, however, decided to boycott the event and return to his home in Florida instead.
Following his inauguration, Mr Biden is expected to repeal some of policies put in place by his predecessor, including ending the construction of 'The Wall' between Mexico and the US, stopping the travel ban from some Muslim-majority countries, and rejoining the Paris Climate Accord and the World Health Organisation.
Aides revealed that in the hope of rewinding some of Trump's policies, Mr Biden will sign 15 executive orders - joining just two other presidents in signing executive actions on their first day, who only signed one each.
He is set to review all of Trump's regulations and executive actions - in particular any that are potentially damaging to the environment or to public health.
Federal agencies will be ordered to prioritise racial equality and review any policies seen to reinforce systemic racism.
Biden will also revoke an order that Trump used in the hope of excluding non-citizens from the census.