The TherMax Eclipse II
In Figure 4, you see the front of the heatsink, which has a tower design, with heatpipes bringing the heat from the base to the heatsink.
In Figure 5, you see the cooler from the side. The edges of the fins are curved, forming a closed surface which creates an "air tunnel" inside the heatsink.
In Figure 6, you see the top of the cooler. The tips of the five U-shape heatpipes form a "V" pattern, in order to receive more airflow than if they were in a single row.
In Figure 7, you can see the small auxiliary heatsink that is located on top of the cooler base.