Trump inauguration in DC: Travel expert reveals what to do after President-elect is sworn in

In 2023, the city welcomed nearly 26 million visitors, setting a new record, according to Destination DC.

Kristin Petersen, a travel advisor for Travelmation, told Fox News Digital that if visitors are looking for indoor activities, there are many options around D.C.

"Obviously, you will want to hit the Smithsonian's along the Mall while you are in town, and the National Museum of American History, where you can see the Star-Spangled Banner and the First Lady's gowns," said Petersen.

For history buffs, travelers can see the Declaration of Independence, the Constitution and the Bill of Rights at the National Archives Museum.

For family affairs, the International Spy Museum welcomes all ages. 

Petersen said that it is a fun museum.

"Remember all monuments are outside, but if you are dressed appropriately, they are absolutely worth a visit," said Petersen.

On Sunday, President-elect Trump will be attending a wreath-laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery, FOX 56 reported.