Tina and Fotis Kambouris, the owners of Mykonos Gyro & Cafe at 1014 N. Van Buren St., are closing the cafe Dec. 30 to retire. Mykonos opened in 1995, staying open until 3:30 a.m. until recently for weekend revelers. The restaurant was a second career for Tina Kambouris, who bought the cafe from her brother after leaving US Bank after 27 years.