2006 Gesneriad Society Convention: Trees and Arbors

This is a mighty big tree.  If you know what kind of tree it is, tell me.

This is a very pleasant arbor within (I think) Highland Park.  But maybe not.  As I write this, it was almost 4 years ago.  My memory being what it is, it might as well be 400.

On the other hand, you the reader have an infallible memory and will soon let me know the exact location of this structure, as well as the identity of the white-flowered plants in the foreground.