‘Eco Park’ is an urban park in New Town Kolkata and the biggest park in India currently. This is conceptualized by Honorable Chief Minister of West Bengal Mamata Banerjee in the year of 2011. If you want to enjoy natural beauty inside a city, then this is the place you should visit. It has different parts. Ecological zone, theme gardens and recreational places.
You can read more about Eco Park in Wiki here.
They have created a new section inside the park. This is called ‘seven wonders’. It has replica of seven wonders of the world in it including Taj Mahal, Great Wall of China, Colosseum etc. They look very real if you visit there. Just like you are seeing all the seven wonders in front of you. I visited the place in Christmas this year and took some pictures there.