Can you help me with a famous painting?

Question:

Can you help me with a famous painting?

I have a painting stuck in my head. It's very famous but for some reason I cannot find the title or artist online.

It depicts a man (from the back) standing on the edge of a cliff facing the ocean. The waves are white and the cliff is rocky. I think the painting was done during the renaissance - I know it is definitely not modern. I also remember studying it in regards to philosophy and romanticism, specifically.

Please help me! The pain of searching to no avail is giving me a headache.

Best Answer - Chosen by Asker: Hi, maybe one of these?
Caspar David Friedrich ~ Wanderer Above the Sea of Fog
http://www.artchive.com/artchive/f/fried...
Caspar David Friedrich ~ Monk by the Sea
http://www.wga.hu/frames-e.html?/html/f/...