What are your favorite less-common programming languages?

Was having a nostalgic chat with some coworkers recently about programming languages we've used in the past, especially some outside of those that we seem to more talk about, like Python, C, Ruby, Go, Java|Script, HTML, etc etc.

Here are a couple of languages that I have fond memories of that maybe don't fit the current "corporate dev mold":

• TI-BASIC: As a kid, I dabbled a bit with QBASIC on our first family computer, but I didn't do anything of substance until I got my first graphing calculator in middle school, the TI-80. I wrote some (real bad) tiny text adventures, and then a bunch more fun little things once I upgraded to a TI-89 - it was vastly more powerful AND had a data link so I could code fun little scripts FROM A PC and transfer them to the calculator

• VBA: Feels like a lot of people have VBA horror stories, all of which are valid, but we should all acknowledge the amount of true, real-world business value wrapped up in VBA. Best part, VBA was #nocode before #nocode was cool. Classic VBA dev flow:

How do I do this??"
Lemme just record this Excel macro and see what VBA it spits out.

So, my question to everyone else:

What are some less-common languages that you hold near and dear to your heart?