He was buried in a cemetery in Baghdad but as far as I know, the exact location of his grave is unknown.
they are like other Muslims. especial to shia for example each year they have public bereavement ; mourning ; wellaway for Imam Husain (sa). please refer to question below:
Imaam Hasan (as) and Imaam Husain (as) are brothers in whom the Imaamat continued and after them the Imaamat will never occur in between two brothers till the Day of Qayaamat. Maulaana 'Ali (as) is their father. According to Isma'ili Faatemi Taiyebi Sect, Imaam Hasan (as) is the first Faatemi Imaam and Imaam Husain (as) is the second Imaam. The Imaamat will remain on the surface of this world in the progeny of Imaam Husain (as) till the day of Qayaamat. The world is existing only because the Imaamat from their progeny is alive on this earth. As Allah says in the Qur'an, "My land never remains empty of My Hujjat" - who is the Imaam in the progeny of Imaam Husain (as). Imaam Hasan was chronically poisoned by his wife Ja'daa bin 'Ash'Ash (La'natullahe 'alayhe). Imaam Husain (as) was Martyred in Karbala along with his 72 companions in 61 AH on 10th Moharram ul-Haraam.
the cities that the have grave of any of fourteen infallibles are holy cities of Shiite. the grave of Ali (sa) is in Najaf, Iraq. Mashhadd, Iran for Imam reza (sa), Karbala, Iraq for Imam Hussain (sa), Samerra, Medina. fourteen infallibles are prophet and his daugher and 12 Imams and according to shia the 12th Imam is alive now and leading and supporting Muslims.
Imam Ali Bin Abi Talib burried the prophet, just a note, Imam Ali(a.s) is not a Sahabi of the Prophet but he is the same as the prophet "Nafsu Rasoolilah"
Mishal Husain's birth name is Mishal Husain.
Shaharom Husain died in 2008.
it for respect to soul and body of dead prophet or Imam and also to keep grave of him safe from being destroyed by pilgrims or enemies who want to destroy the grave.
the cities that the have grave of any of fourteen infallibles are holy cities of Shiite. the grave of Ali (sa) is in Najaf, Iraq. Mashhadd, Iran for Imam reza (sa), Karbala, Iraq for Imam Hussain (sa), Samerra, Medina. fourteen infallibles are prophet and his daugher and 12 Imams and according to shia the 12th Imam is alive now and leading and supporting Muslims.
the cities that the have grave of any of fourteen infallibles are holy cities of Shiite. the grave of Ali (sa) is in Najaf, Iraq. Mashhadd, Iran for Imam reza (sa), Karbala, Iraq for Imam Hussain (sa), Samerra, Medina. fourteen infallibles are prophet and his daugher and 12 Imams and according to shia the 12th Imam is alive now and leading and supporting Muslims.
the cities that the have grave of any of fourteen infallibles are holy cities of Shiite. the grave of Ali (sa) is in Najaf, Iraq. Mashhadd, Iran for Imam reza (sa), Karbala, Iraq for Imam Hussain (sa), Samerra, Medina. fourteen infallibles are prophet and his daugher and 12 Imams and according to shia the 12th Imam is alive now and leading and supporting Muslims.
the cities that the have grave of any of fourteen infallibles are holy cities of Shiite. the grave of Ali (sa) is in Najaf, Iraq. Mashhadd, Iran for Imam reza (sa), Karbala, Iraq for Imam Hussain (sa), Samerra, Medina. fourteen infallibles are prophet and his daugher and 12 Imams and according to shia the 12th Imam is alive now and leading and supporting Muslims.