Board Thread:Suggestions forum/@comment-29140374-20160718220741/@comment-26065088-20160720145855

Gabrieltroissoixante wrote: "...in the midst of the land was a mountain tall and steep, and it was named the Meneltarma, the Pillar of Heaven, and upon it was a high place that was hallowed to Eru Ilúvatar, and it was open and unroofed, and no other temple or fane was there in the land of the Numenoreans." - The Silmarillion, Akallabêth

No structure was built on the peak of Meneltarma. The "temple" of Eru of which you speak was the hallowed and sacred mountain itself.

yes, no structures in meneltarma but in the sunken "Numenor" biome if it is added