For the "Merge" challenge I decided to tap into one of my favorite themes: Man vs. Nature. In the series above I juxtaposed various trees against the Washington Monument on the Mall in Washinton, D.C.
Both subjects reach for the sky, one the product of man's creativity, the other, a growth of natural world. Both, I feel, are powerful expressions of the need to say "I exist."
A few more in this series here.