All the senses can trigger memories. You know how - even without trying - a sound, image or even a scent can conjure something from the deeper recesses of memory. There is not yet a device for readily generating different scents but I can expose you to random sounds and images. Anyone of these might trigger something or nothing at all. I suggest you don't click through them too quickly. Shut your eyes and allow the deeper recesses of your memory a chance to see if anything is resonating.
I recommend to try the audio stimuli first. Sounds seem to be more evocative and effective in stimulating the brain to get busy to try and recognise and interpret. You can almost feel its internal rolodex spinning round sometimes.