Citizens will be voting on whether to legalize same-sex marriage this Sunday. If approved, it will be a huge step forward for a nation which has straggled behind its European neighbours.
Update: Swiss voters weighed in. The law was passed to legalise civil marriage and the right to adopt children for same-sex couples by a nearly two-thirds majority.
In most eastern European countries, same-sex marriage remains illegal.
However, on the western side of the continent, nations have been eager to change their legislation in line with increasingly positive global attitudes towards the LGBTQ community.
Always the leading libertarian, The Netherlands was the first EU country to legalise marriage for same-sex couples, followed most recently by Germany and Austria. Switzerland, meanwhile, is one of the last western European countries that still has a ban on gay marriage.
Swiss law has allowed civil partnerships between same-sex couples since 2007, though this does not provide couples with the same legal rights and protection as official marriage.
This can make life complicated for international couples, those wanting to raise adopted children, or in unfortunate circumstances such as the death of a partner.