Haryana is known for its fields and is known for the divine location where Lord shri Krishna gave Geeta Path to Arjuna. you can visit the Brahmsarovar, Shiva temple and Krishna museum in Krurukshetra.
Another place worth visiting in Haryana is Arunaya Shiva dham which is one of the major Jyoti Shvilings. Also you can head to Panchkula where tikkar tall lake and morni hills is an offbeat destination away from the rush of cities to give you a heavenly experience in the lap of nature.