At the Dachshund monument, parades of dachshunds have been held, and the museum of vintage vehicles has gained additional new exhibits.
There are a few additional exhibits for an extra charge.
A chronological list of additional national exhibits celebrating Lincoln's 200th birthday can be found on the Bicentennial website.
One is a series of three additional exhibits of Ming and Qing paintings.
The pictures, chosen from 114 entries out of 330 submissions, will remain on view through Dec. 22 and will be accompanied by two additional exhibits.
It has become the centerpiece for the Campbell Historical Museum, which houses additional exhibits in the nearby old firehouse.
The fourth floor is double the height of the third floor, with a mezzanine that contains additional exhibits.
There are additional exhibits where one can read about the penguins and view other aquatic birds.
At most times there is at least one additional temporary exhibit on a horological theme.
Additionally, out of doors, the museum has a few additional exhibits, including a snake pit and a crocodile container.