Lincoln's Hat

Abraham Lincoln's hat can be found in the Museum of American History.

From the Museum of American History Lower Halls enter the Offices. Once you go up stairs, turn right and enter the first room on your right. It should be the north western room. It will be filled with rubble and his hat is there.

Look very carefully behind all of the overturned bookcases and you'll see the hat. It's kind of small, look hard.

Note: in my case the hat was on the ground floor of the Offices, in the NW room (with a huge hole in the ceiling). It was near the center of the room, lying on the edge of the dirt.