Seems that a lot of asanas can be worked at the wall in Iyengar yoga. These would include obvious things, like headstand or full arm balance, and one-legged standing poses with the lifted foot on the wall (think utthita hasta padasana and cousins), and less obvious things like urdhva dhanurasana or viparita dandasana or kapotasana or ... it just goes on.

The wall is an endless source of amusement!

I like to thing of the wall as the second most important prop in Iyengar yoga.

What is your favorite wall pose?

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I guess that I really like the wall for Urdhva Dhanurasana.  That somehow unpacked a bunch of stuff about the upper back for me, along with Kapotasana with belted legs.  I'm not really a prop person, but when props work the really work.  I'm currently really into putting an upright block between my shoulderblades for Supta Virasana -- great upper back/chest opener.

.. bg