The Mehrauli Archaeological Park -- located next door to the Qutab complex is -- probably the "best'' conserved part of the city. A successful collaboration between the Delhi Tourism and Transportation Development Corporation (DTTDC), the State Department of Archaeology, the Delhi Development Authority (DDA) and the Indian National Trust for Art and Cultural Heritage (INTACH), this patch of "green'' has the remains of all the cities of Delhi. And with the Archaeological Survey of India (ASI) now pushing to notify Balban's and Quli Khan's Tomb, a proposal which has been pending for about a year, the Archaeological Park has different organisations working together harmoniously to protect it.