Some may refer to me as a valley but I think my name sounds sweeter My first letter matches the first of my color and I think that makes me neater

Virtual voyager ventures vast vistas, disengaging digital duties, recharging robotic reserves. Target relaxation: deactivate daily directives, explore exotic environments.

Where shadows dost play, Between the towering walls, Thou path of whispers.

Stubborn souls choose to die on me, a movie title claims I see, a famous song named after me, I seem to roll endlessly.

I’m a puddle that peaked in medieval times, I go around houses like property lines. I don’t wave hello, I just sit and float What am I?