Send the following on WhatsApp
Continue to ChatPublic talk on top of the Oude Kerk! (Postponed!) https://www.seramarkoff.com/2015/07/public-talk-on-top-of-the-oude-kerk/
Public talk on top of the Oude Kerk! (Postponed!) https://www.seramarkoff.com/2015/07/public-talk-on-top-of-the-oude-kerk/