At this point I've stopped trying to do my Dilli Darshan chronologically, so this post is about Purana Qila (literally Old Fort) and the remaining structures of what is known as Dilli Sher Shahi, which are from the 16th century, so I've jumped a couple of centuries. This is not too bad a thing, because most of the sites I'm going to be posting about from now on have structures from different historical periods, and thus have overlapping layers of building styles and types, much like the Nizamuddin site from the previous post.
The ramparts of Purana Qila are one of the iconic sights in Delhi. They were built by Humayun and Sher Shah Suri in the first half of the 16th century. The gates of Purana Qila are pretty interesting, especially when compared to the gateways of later Mughal palaces/forts. This was one of the first forts/palace complexes built by the Mughals, so architecturally it is interesting to see the development of the Mughal style from here on out. The only problem with this is that the two remaining buildings inside the fort were probably built by Sher Shah Suri, who was not a Mughal, as were, possibly, the gateways as they are visible today. However, stylistically these are all built very similar to what has become known as the Mughal style. Equally interesting is the stylistic continuity between previous Delhi buildings and the ones at Purana Qila.
Purana Qila ramparts
Rampart details, which are similar to the Siri Fort walls
West gate detail
South gate - this gate is only partially visible above the treeline inside the Delhi Zoo!
North gate details
North gate from inside the fort
Rooms and arcades within the fort walls
Pavilions on the "river side" of the fort walls, with the Qila-i-Kohna mosque in the background
Apart from these gateways and ramparts, the area inside Purana Qila is a little disappointing, in that there are just two important structures still standing among the gardens maintained by the ASI. However, one of these two structures is the Qila-i-Kohna mosque, built by Sher Shah Suri, which is among the most beautiful mosques in Delhi!
Qila-i-Kohna mosque and underground chambers
Arch treatment of the second (and fourth) bay of the five bayed mosque
Side bay in the foreground
Second and fourth bay arch treatment
Central bay arch treatment
Central bay interior squinches
Second and fourth bay side-mihrabs
Shallow dome and pendentive detailing on the second and fourth bay ceilings
Rear wall of mosque
Qila-i-Kohna mosque from baoli
The second remaining structure is the Sher Mandal, a secular palace structure which is said to have been a library or astronomical observation building, and running down the stairs of which Humayun is said to have fallen and died.
Sher Mandal and Qila-i-Kohna
Sher Mandal from hammam. The smoke stacks in the background are of a power plant nearby to the fort
Khairul Manazil was a mosque and madrasa built just outside, and just after, the Purana Qila by one of Akbar's (Humayun's son's) courtiers. It lies across a major throughfare from the fort, and along with the adjacent Lal Darwaza (see below), is the structure that people driving by Purana Qila look at and comment "If the fort is on that side, then what the hell is this thing?"
Khairul Manazil coutryard
Mihrab detail with signd of ongoing restoration work (hopefully)
Khairul Manazil gateway - this is what is visible from the road
Khairul Manazil exterior from Lal Darwaza
Dilli Sher Shahi
Dilli Sher Shahi is said to be the city that Sher Shah Suri built near Purana Qila (which was then called Dinpanah), and of which just two gateways remain.
These two gates are familiar landmarks for South Delhi denizens, but the first - Lal Darwaza (literally "red gate"), along with the adjacent Khairul Manazil mentioned above, is a decontextualized structure that no one really knows the identity of; and Khuni Darwaza (which translates as "bloody gate", a reference to an incident that occurred during Delhi's colonial history), is often mistakenly associated with the Red Fort (since the Red Fort's own Delhi Gate lies on the same road a little north of the Khuni Darwaza).
Close up, Lal Darwaza is definitely the more impressive of the two gates
Khuni Darwaza set in the broad median of a major road