The White House has uploaded almost 300 photos of Barack Obama's first 100 days in office, in a Flickr gallery called, cheesily, "Delivering on Change." The photos themselves are pretty great. Our ten favorite:

Taking a break during Inauguration festivities.

Chatting with HillRo on the South Lawn

Contemplating a legacy.

Doing his Katy Perry impression.

At Sasha's school basketball game.

Watching a 3D something during the Superbowl.

Sasha and Malia taking his photo on Inauguration night.

Running away with the dog.