Bluemen Gasse is a flower shop and cafe across from Olympic Park in Songpa-gu, Seoul. It sells both fresh flowers and dried flowers, and the grapefruit tea is made with house-made grapefruit syrup and contains a lot of fruit pulp. Coffee, peppermint tea, and chamomile tea are also available. From the window seats, you can look out at Olympic Park and drink tea with the scent of flowers.