An unforgettable event occurred.

Feelings unspoken are unforgettable.

Jimmy, that was unforgettable!

Her violet pupils are unforgettable.

Each in its own way was unforgettable.

I want this to be an unforgettable show.

One receives unforgettable impressions of scenery and local life.

So what did I learn from this intense and unforgettable experience?

This is the unforgettable place where we met each other for the first time.

The friendly support, the quiet confidence, congenial hospitality shown by our Hawaiian and military hosts (Music) this is starting made the experience enjoyable and unforgettable.

And you'd come up with some sort of crazy, ridiculous, unforgettable image, to remind you that the first thing you want to talk about is this totally bizarre contest.

What you're doing, is you're trying to get better and better at creating, at dreaming up, these utterly ludicrous, raunchy, hilarious, and hopefully unforgettable images in your mind's eye.

The idea behind the memory palace is to create this imagined edifice in your mind's eye, and populate it with images of the things that you want to remember the crazier, weirder, more bizarre, funnier, raunchier, stinkier the image is, the more unforgettable it's likely to be.