//
Photo: Ramesh lalwani, CC BY-SA 3.0 via Wikimedia Commons
"Kos Minar", or distance markers are pillars built by Sher Shah Suri in order to measure distance. The distance between the two Kos Minars is roughly 8 km. They are massive pillars, 9 m high, built on a high platform.
© OpenStreetMap contributors
NZP
The Delhi Zoo is a very large and sprawling park dedicated to preserving the rich biodiversity of the country. This park may be the only chance of seeing a tiger or elephant for some travellers. Be prepared to do a lot of walking.
It has a similar layout to the Sundarwala Burj but stands on a much higher elevated platform. Nothing is known about the occupant and the origin of the name.
A gate built by Mughal Emperor Humayun located in Purana Qila. It is the southeast gate of the fort.
Built of rubble masonry and devoid of plaster the ruined structures consist of three arches. The central arch is bigger than the two flanking it. The structure behind the arches is all in ruins.
Central Park, Azim Bagh, Bagh-e-Azeem
A 16th-century heritage park complex. During British rule, the nursery was established to grow experimental plants. Today the nursey still operates. It is an interesting mix of landscape gardens coupled with wilderness. The park is a favourite among morning and evening walkers and has special play zones for kids.