Kota Darul Ehsan - I hope - is the name of this arch. It divides Selangor from Wilayah Persekutuan. Basically separates PJ from KL. I used to be awed by it when I came to KL for visits when I was a kid.
I will be away for the next few days. Trying best to still make it for theme day - bridges! Have a great week!!