No, you haven't had one too many
- you're seeing an actual Upside Down Wine Glass. This boozy optical illusion is guaranteed to make your dinner guests do a double-take while they rack their brains as to why there isn't wine pouring all over the table! The usual 'top' of the glass is sealed & the bottom is open, while the main glass & stem remain hollow to accommodate all of that tasty vino. ðŸ¤Â