俄罗斯十月一日向53个国家开放去圣彼得堡的免费电子签，可惜美国不在名单上
https://www.evisasrussia.com/st-petersburg-evisa/
Citizens of the following eligible countries and territories are able to get either a single or double-entry tourist visa for Russia valid for a stay of up to 30 days in the country:
- Austria
- Andorra
- Bahrain
- Belgium
- Bulgaria
- Cyprus
- China
- Croatia
- Czech Republic
- Denmark
- Estonia
- France
- Finland
- Germany
- Greece
- Hungary
- India
- Indonesia
- Iran
- Ireland
- Iceland
- Italy
- Kuwait
- Japan
- Latvia
- Lithuania
- Liechtenstein
- Luxembourg
- Malaysia
- Malta
- Mexico
- Monaco
- Netherlands
- North Korea
- Northern Macedonia
- Norway
- Oman
- Poland
- Portugal
- Philippines
- Qatar
- Romania
- San Marino
- Saudi Arabia
- Serbia
- Singapore
- Slovakia
- Slovenia
- Spain
- Sweden
- Switzerland
- Taiwan
- Turkey
- Vatican City
