Observatorielunden is a park in Stockholm's Vasastaden district. It stretches over the steep hill Observatoriekullen, one of the last remnants of Brunkebergsåsen, the esker that once reached across much of Norrmalm but was mostly levelled during the development of that district. Observatorielunden is bordered by the streets Odengatan to the north, Sveavägen to the east, Kungstensgatan to the south, Drottninggatan to the southwest, and Norrtullsgatan, Sandåsgatan and Gyldéngatan to the west. The Stockholm Observatory sits on top of the hill, and Stockholm Public Library and the Stockholm School of Economics' main building lie at its edges.