I hadn't been up in the Arc de Triomphe yet and I thought it would be a swell idea to see la Nature Capitale on the Champs Elysees from a high viewpoint, as well as the sunset over La Defense and the twinkling of the Eiffel Tower at dusk!
some video views for you:
Now for the sunset over La Defense:
Underneath the Arc de Triomphe is the tomb of an unknown solider from WWI. An eternal flame is lit every night:

