Trainiškis oak tree - decayed exceptional oak tree, state protected natural monument in Ignalina district, Trainiškis village. The oak tree grew in the woods, near the huts, 100 m south of the main street of the village. Informational pointers have been built. in 2016 October 5 a strong wind blew the oak down during the night. According to experts, he could have been 700-800 years old. Trunk circumference - 6.1 m, height - 23 m. The oak of Trainiškis mentioned the times when groves of sacred oaks were rustling in Lithuania. In the spring of 2017, a young oak tree was planted next to the old stump, grown in the nursery of the Kėdainiai Forest Office from a grafted Trainiškis oak shoot.