overview opening hours Restaurant Reason is not just about the food. It is a place where every detail has meaning - from the hand-forged steak knives to their own fermentations, which transform ordinary ingredients into unexpected delicacies. The restaurant, owned by leading Czech chef Jan Horák, is located 11 stories above the ground on the rooftop of Masaryčka, an architectural landmark in the centre of Prague by Zaha Hadid Architects. The tasting menu, with an emphasis on sustainability and creative work with ingredients, guides guests on a journey from Northern Europe all the way to the Adriatic Sea - with lightness, yet also with boldness. At Reason, don’t expect ostentatiousness, but rather joy in detail and surprise. opening hours january—december mon closed tue—fri 12:00—15:00 18:00—22:00 sat 18:00—22:00 sun closed more about opening hours opening hours january—december mon closed tue—fri 12:00—15:00 18:00—22:00 sat 18:00—22:00 sun closed