Nityananda Prabhu had pointed to Srila Jiva Goswami a place where Adbhuta Mandir would come up. It just so happens that the place which Nityananda Prabhu pointed out corresponds to the place in which Srila Prabhupada had the devotees lay a corner stone.
* Srila Prabhupada did not push construction to start while He was present because He saw that it will take time to do it in the right way. So, He did established Ananta Shesha & corner stone at the place where He wanted this Temple to come up, which is totally corresponds with place pointed by Nityananda Prabhu to Jiva Goswami.
* The Adbhut Mandir seeing by Bhaktivinoda Thakura is situated on the straight line from His house in Godruma to Yoga Pitha, this line goes through the spot where Srila Prabhupada established Ananta Shesha & corner stone (ISKCON garden area does not come close to that line).
* In the eternal Mayapur this wonderful temple situated in Isodan, South-East area of Antar-dvipa, which corresponds with the area where Srila Prabhupada had corner stone established. (which still to this day remains vergine of any development)
In the pictures above - the corner stone is shown, presently this corner stone is on the wall in ToVP office, Chakra building (known as Long bld); the area where the corner stone was originaly established is shown - in the fields behind the Lotus-Conch bld compound, about 1 kilometre away from Lotus bld;
in the next 2 photos - the latest model of the temple is shown set in the present Mayapur gardens, where this temple is now proposed to build, fitting very tightly in between existing buildings (Lotus, Chakra and Samadhi Mandir):
Srila Prabhupada had established two Ananta Shesas in Mayapur - one in 1972 to support the whole ISKCON project in general; the second one was established in 1977 specifically for the Temple of Vedic Planetarium.
The first Ananta Shesa is in the ground where the ex-elephant house was, near Samadhi Mandir, Srila Prabhupada established this particular Ananda Sesha to support the whole ISKCON Mayapur project, in 1972.
[This place falls under present construction plans, so there is a danger of Ananta Shesa being dug out in the process of making foundation...]
Then, on the 5-th of March 1977, Srila Prabhupada established second Ananta Shesha & corner stone - about one kilometre into the fields behind Lotus bld, in the land of Antradvipa island - to support the Temple of Vedic Planetarium.
This Ananta Shesa was stolen from the ground - when asked about it, Srila Prabhupada said that it means there will be difficulties in starting this temple. He did NOT say "let's build it somewhere else".
Thus Srila Prabhupada's last instruction for location of the Temple of Vedic Planetarium (ToVP) is publicly known and clear.