I've been taking my own photos
I simply ADORE your skate park pic, you really nailed it!
Heres my one liminal pic. I wanted to climb up SO bad.

I've been to a few more liminal spaces;
The maze of corridors in some big warehouse on my way to a job interview. It unsettled me enough that I took a video lol.
The basement at the college I went to, which I didnt get too far in, bc I didnt want to get in trouble.
The empty movie theatre parking lot at the end of a movie you were the only one to watch. Love this one.
I also used to love running around my high school's empty corridors after classes ended.
We were supposed to stay in one of the supervised areas,
but me, my bf at the time and my bf would play chase in the corridors
since I had to wait for an hour until I got picked up.
These memories are very fond to me.