Yes, both real life and live online events in the European Union are VAT taxed in the country they take place at. In For a more detailed explanation, please consult the paragraph "Supply of services" in this article by the European Commission. We quote:
B2B services in respect of admission to cultural, artistic, sporting, scientific, educational, entertainment and similar events will be taxed at the place where those events actually take place.
Example 34: When an Irish company for business purposes pays for the entry to an opera in Verona, the ticket will contain Italian VAT. That applies whether the ticket is bought on-line or at the ticket booth.
Example 35: For a conference organised in Stockholm for participants paying a fee to attend, Swedish VAT is charged.