I'm a big fan of European serving sizes compared to U.S. for food – but when it comes to beverages, particularly water, I can't believe how much they charge you for how little they give. I understand everything comes in bottles with VAT but even asking for tap water I found they'd only bring a very small glass.
In some European countries water is free. I am from Sweden where all places have free tap water and fancy places often have free sparkling water.