How do bees know where to go?

I stumbled across a couple of related articles on Phys.org. I was directed there via Google's news page. It is well established that a successful forager bee will communicate the location of a nectar source to other forager bees via the famed waggle dance, in which the vector location (distance and direction) of the source from the hive is specified by the angle and frequency of the waggle.

Waggle Dance

It turns out that foragers who have been out and about will also cross check that information with their own knowledge of the terrain.  If the dance location includes landmarks a follower bee is already familiar with, the bee will use those landmarks to hone in on the nectar source, rather than just flying blindly in the indicated direction. (Phys.org Bee Communication)

There should be a tree near that location, so I will fly to the tree first, then I will look for the flowers.

rather than

There's the sun.  I go this direction....  That should be about the right distance.... Where are the blooms?

Additionally, once the bee has found the nectar source, it flies it's own specific path from the hive to the source and back with surprising regularity and accuracy! (Phys.org Bee Flight Path)

Efficient little...ahem...buggers.