You can group countries of the map into groups, fill them with the same color add mouse interaction for the whole group. The map can automatically detect the bounds of the group and zoom-in to it.
Funnel chart can have 3D look. To achieve this, you should set <code>depth3D</code> and <code>angle</code> properties to some bigger than 0 values. Note, if you do this <code>neckHeight</code> will automatically become 0 (neck won't be displayed).