Is there any fact about physics that I consider stranger? Well, I don’t know; the basics of quantum physics are as strange to me (they’re all 100% strange).
As I see it, this ‘strangeness’ says more about the limits of my intuition than about the ‘strange’ facts themselves.

I was amused to notice that the formula yields a maximum velocity of C even when either V or W exceeds C (which, as we have learned, is an impossibility).
Example: if (impossibly) an object traveling at twice the speed of light, i.e. velocity 2C, would meet a light beam traveling straight towards it, the speed at with the light would hit that impossible object, remains C. The calculation is: (2C+C) / (1 + 2CxC/C^2) = 3C/3 = C.