The Gumuling Well, a remarkable architectural marvel, stands as a testament to the ingenuity and spiritual significance of its era. Located in Yogyakarta, Indonesia, this two-story building is shrouded in mystery and intrigue, accessible only through an underwater tunnel, adding an air of mystique to its already captivating presence. Once serving as a mosque, the Gumuling Well is adorned with niches on both floors, believed to have functioned as mihrabs where prayers were led by the imam. At its heart lies an open center with four ascending levels, culminating in a meeting point from which access to the second floor is granted. Beneath this convergence, a small pool whispers tales of ablution rituals performed in reverence. With its unique design and sacred history, the Gumuling Well stands as a timeless symbol of spiritual devotion and architectural brilliance, captivating all who venture into its depths.