They are my “go to” brick and mortar store; I purchased my D5300 there and have been more than pleased with their products, prices and services.
Chocolate Fetish — not particularly a photo op but the best chocolate in the USA.
You must have a Runza sandwich — this was originated in Lincoln and is now a small, local chain. There are several Runza shops around town. You should also visit Pioneers Park, the large Indian statue could be an interesting photo op.