Hostile Architecture & Defensive Design

"Why cities are full of uncomfortable benches" -- Vox, 2017, 3:59 -- https://www.youtube.com/watch?v=WeyLEe1T0yo

Good video to accompany discussions on public space, social control, and anti-homelessness measures... What other examples of hostile public spaces can you identify? 

From the video's description: "When designing urban spaces, city planners have many competing interests to balance. After all, cities are some of the most diverse places on the planet. They need to be built for a variety of needs. In recent years, these competing interests have surfaced conflict over an unlikely interest: purposefully uncomfortable benches. Enter the New York City MTA. They’ve installed 'leaning bars’ to supplement traditional benches & save platform space. But designs like this carry an often invisible cost: they rob citizens of hospitable public space. And the people who experience this cost most directly are those experiencing homelessness".