I have been in lucknow for 11 years a long time.lucknow is known for its historical monuments and incdents.i would really suggest u to go and explore these place such as
Bara imambara including bhul bhulaiyaa which has its own secrets and shahi bawli
Asifi masjid and rumi darwaza.imambara and all these things nearby
For childrens to visit is lucknow zoo now famous for gujarat lions and its museum.and also science city for students
Food in lucknow is delicious specially non veg u can explore there great taste.like tunde kawabi world famous
Over all it is a nice place to visit
Athithi devo bhava- we resepect and welcome our all tourists