Indeed, the first House [of worship] established for mankind was that at Makkah - blessed and a guidance for the worlds.
The Saheeh International Quran Translation
إِنَّ أَوَّلَ بَيْتٍ وُضِعَ لِلنَّاسِ لَلَّذِى بِبَكَّةَ مُبَارَكًا وَهُدًى لِّلْعَٰلَمِينَIndeed, the first House [of worship] established for mankind was that at Makkah - blessed and a guidance for the worlds.