The most fundamental of Hindu deities, is the Trinity of Brahma, Vishnu and Shiva - popular deities include Ganesha, Krishna, Hanuman and goddesses like Lakshmi, Durga,Saraswati.
God/Godess
Symbols of Shiva-svayambhuva-lingas
Lingas that have never been installed are called the self-created, svayambhuva-lingas. They are natural rock or ice formations shaped like a pillar.