When I was going to Kanchipuram from Chennai (on the Chennai-Bangalore highway), I saw a large Shiva/Nandi statue on my left hand side. This statue was located just before one takes a left to go to Kanchipuram from the main road (main arch) and just after the L&T factory.
I became curious and went near the place to enquire with the security staff on whether I can visit the premises. He was happy to come along with me, show around the place and answer my questions. I came to know that this premises is not actually a Temple, but is meant to be more like a monument. It seems it is built and managed by Sankara Madam, based in Kanchipuram.
The Nandi Statue is about 25-30 feet in height and the Shiva statue is about 60-70 feet in height. I am not sure if you are able to guess its height from the pictures, but the statues are huge and are easily visible from the main road. It seems this place is open for public to visit (there are no tickets).
He told me something else that was even more interesting. It seems, Sankara madam has also conceptualized a heritage/mythological museum right behind this place and people can visit it to get a glimpse of our mythological history. He says multimedia-based exhibits are also included.
But they require at least 5-6 people to operate important exhibits in that museum (visitors in groups). Since I went alone, I was not able to visit it. If anyone is able to visit this place, please share your experience in the comments section below.
Meanwhile, have a look at some pictures of Lord Shiva/Nandi and a short video I took near the monuments.