Visit Senso-ji Temple (Asakusa)

Senso-ji Temple in Asakusa is Tokyo's oldest sacred site, dating to 628 CE, and welcomes 30 million visitors annually—outpacing #3's total by over 10 million. Its 7-meter red lantern and vermillion gate lead to Nakamise shopping street, a 250-meter arcade of traditional snacks. Free entry and best visited at 6am to avoid crowds, this temple offers a historical depth that is 200 years older than any other on this list.