Final answer:
The most expensive glass of red and white wine can be found in high-end restaurants or luxury establishments, typically costing around $1,000 per bottle.
Step-by-step explanation:
The most expensive glass of red and white wine would typically be found in high-end restaurants or luxury establishments. These establishments may offer a wide selection of expensive wines, but the specific prices can vary. For example, a high-end restaurant may offer a bottle of red wine from Bordeaux, France that costs around $1,000, or a bottle of white wine from Burgundy, France that has a similar price range. These wines are considered expensive due to their premium quality, limited production, and their association with prestigious wine regions.