Kista, along with a lot of other repetitive hits, is a bot or web crawler. Hitting on web pages is the beginning of how search engines are populated. I also get numerous hits from New York, San Francisco, Wilmington, Beverly Hills and Cupertino, which represent hits from Amazon and Apple. You can tell who is hitting on your art by hovering over the city until an IP (series of numbers and periods) shows up. Copy that IP and go to whois.com. You can look up the source of the hit. Bad news, they are not real buyers, good news, you get incorporated into search engines.