Some time last year when I was in Penang, I visited the Dark Mansion – the first Glow in the Dark museum in Malaysia. Ticket was purchased on KLOOK which was slightly cheaper and fuss-free.
The musuem was dark with nice glow in the dark effects from the objects around. Though the place was not particularly spacious, there were several photo-taking areas, such as against the backdrop of an ocean, in a mirrored room with a ceiling full of glowing creatures, within a floral carriage and atop a waterfall which is a 3D illusion.
Overall, only some parts are interesting like the glowing path, and the place was crowded when I was there. Wish that it could be bigger and filled with more exciting elements.
Dark Mansion Museum
No. 145, Kimberley Street, 10100 George Town, Penang
Tel: +60 4-251 9694