Nuldam Space Gyeongbok PalaceClaimed by the owner

A vegan café beside Gyeongbokgung Palace in Seoul, with three floors plus a rooftop and palace views from upper-floor windows. It is known for a service that lets guests write a letter mailed to themselves a year later, with a wax-stamp station and a photo booth. The signature menu includes almond cream latte, americano, chocolate latte, and a black-tea lemon ade.