The inauguration of President-elect Joe Biden and Vice-President-elect Kamala Harris this Wednesday will look very different from the nation's past ceremonies, as the pandemic and heightened security threats mean that crowds will be drastically smaller and celebrations curtailed.
Mr Biden will take the presidential oath of office and be sworn in as the 46th president of the United States at around noon US time.
In the past, hundreds of thousands of Americans, many of whom had travelled to the capital from other states, usually gathered on the National Mall - the park flanked by the Lincoln Memorial, Washington Monument, Smithsonian museums, US Capitol and White House.
Not this time. The National Mall will be closed to the public due to security concerns, and officials are discouraging people from travelling to Washington for the inauguration.
Viewing stands will not be erected, and the number of tickets available will be much smaller this year. Previous inaugurations distributed 200,000 tickets, but this year only 1,000 tickets will be given out and Congressmen will be allowed to bring only one guest.
Due to security concerns, Mr Biden also scrapped his plans to travel to Washington from his home in Wilmington, Delaware by Amtrak train. The two-hour rail journey would have been a nod to his tradition of commuting daily from home to Congress in the three decades that he served as a senator.
Thousands of National Guard troops have also been deployed to Washington for extra security following the Jan 6 storming of the Capitol by a pro-Trump mob, and amid the federal authorities' warnings that more violence is expected.
So far, up to 21,000 troops have been authorised to help lock down the nation's capital.
But the show will go on. In the pared-down ceremony, superstar Lady Gaga will sing the national anthem and Jennifer Lopez will give a musical performance, the Presidential Inaugural Committee announced last Thursday. The inauguration will be themed "America United", it said.
The incoming President will be sworn in on the steps at the west front of the Capitol by Chief Justice John Roberts, where Mr Biden will recite this oath, in accordance with the Constitution: "I do solemnly swear that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States."
The new President will then give his inaugural address and conduct a ceremonial inspection of military troops, in keeping with tradition.
Following that, Mr Biden, Ms Harris and their spouses will visit the nearby Arlington National Cemetery and lay a wreath at the Tomb of the Unknown Soldier to honour America's fallen troops. They will be accompanied by former presidents Barack Obama, George W. Bush, Bill Clinton and their spouses.
To represent Americans who are unable to travel to Washington, there will be a public art display on the National Mall of 191,500 US flags, including flags representing every state and territory, and 56 pillars of light - one for each of America's 50 states; Washington, DC; and five territories.
Since Saturday, there have been virtual programmes streamed live, which will culminate in a prime-time television special on Inauguration Day.
It will be hosted by actor Tom Hanks, with introductions from activist-actresses Eva Longoria and Kerry Washington. The show will include musical performances by artistes Bruce Springsteen, Demi Lovato, Foo Fighters, John Legend, Jon Bon Jovi, Justin Timberlake, and Ant Clemons.
Mr Donald Trump will not attend the inauguration, becoming the first president in 152 years to break the tradition of attending their successors' inaugurations to convey their commitment to the peaceful transition of power.
He will instead hold his own departure ceremony at Joint Base Andrews in Maryland before his final flight aboard Air Force One, and leave Washington on the morning of the inauguration, the Associated Press reported.
But outgoing Vice-President Mike Pence will attend the ceremony, as will all of America's living former presidents except for 96-year-old Jimmy Carter, due to Covid-19 exposure concerns.
"Our Inauguration Day is one that demonstrates the continuity of our country and the renewal of the democratic process, as well as the healing that is sometimes needed after an election battle," said George Washington University political scientist Lara Brown.
This year, what can be expected is a "certain amount of soberness and solemnity" in the acknowledgment of the more than 370,000 Americans who have died from Covid-19 so far, and the dark days of the pandemic ahead.
"There is a desire to both sort of acknowledge the difficulty that we are in, but also offer a vision of hope and optimism about the future that this sort of coronavirus and economic crisis will be confronted, and that it will pass, and that we will have a brighter future," said Dr Brown.
Mr Biden, who has promised to be a president for all Americans, even those who did not vote for him, will likely also call for unity in his inaugural address - particularly in the wake of the Capitol riot.
"Speeches have typically struck those kinds of themes and tones: that whatever our party differences, whatever our ideological divides, we are all Americans and we must move forward together," said Dr Brown. "And so I imagine we will see that again."