Holders of a Schengen visa may travel to Romania without an additional visa, for a stay of up to 90 days in any 180-day period (except nationals of Turkey and Azerbaijan travelling to Cyprus, who still need a Cypriot visa).
As of November 2014, valid visa holders and residents of the European Union and Schengen Area member states can enter Serbia without a visa for a maximum stay of 90 days within 180 days, provided the visa remains valid for the entire length of stay.
San Marino is only accessible via Italy and as such it’s not possible without entering the Schengen Area first. Holders of valid multiple-entry Schengen visa can stay for up to 10 days. Foreign visitors staying more than ten days in San Marino must have a permit from the government.
Macedonia (The Former Yugoslav Republic)
Holders of a valid Type “C” multiple entry visa or Residence Permit for the Schengen Area may enter Macedonia for up to 15 days visa-free. A temporary residence permit is also accepted since February 27th 2019.
Sao Tome and Principe
Holders of a visa or resident permit issued by a Schengen area member state do not require a visa for stays up to 15 days.
Gibraltar (British Overseas Territory)
This country is limited to citizens of China, India, Mongolia, Morocco and Russia holding a Schengen multiple entry visa with a minimum remaining validity of 7 days (for a stay of up to 21 days in Gibraltar).
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