Money!

Moscow is one of the world's most costly cities, and St Petersburg is no exception; wallet-thinning shock is typical in many restaurants and hotels. You'll also pay more than a Russian for several museums as a foreigner, often up to ten times the amount. If you're a student, flashing your ID at museums and other institutions can save you money.

There are several strategies to save money when dining out. Many eateries provide "business lunches" that are both economical and filling. The fad for "anti-cafes" began a few years ago in larger Russian cities, and there are still a handful around where you may pay by the minute for coffee, biscuits, and a little wi-fi time.

Food markets that combine farmers markets with food halls are popular, and they're frequently located in historic structures. You can buy supplies to prepare your own meals or experience cuisines from all around the world at dozens of vendor stands. Many food markets are less priced than sit-down restaurants, and they allow you to sample a greater range of local and international cuisines.