[LinuxBender]

"bollard" [1] - I always called them steel poles with concrete inside, buried in the ground. Someone here corrected me and I learned something. Adding to that I never associated them with the more artistic versions as I assumed those were weaker or just for looks.

[1] - https://en.wikipedia.org/wiki/Bollard

[perilunar]

Check out the The World Bollard Association™ twitter account for photos and videos of vehicles getting caught up by bollards:

https://twitter.com/WorldBollard