Conversation so far:
What was Tambo's biggest honour?
In late 2005, ANC politicians announced plans to rename Johannesburg International Airport after him.
When was the airport officially renamed?
The proposal was accepted and the renaming ceremony occurred on 27 October 2006.
Did he have any other notable honours?
There is a bust of O.R.
Tambo at the Albert Road Recreation Ground, Muswell Hill, outside the Alexandra Park School.
When did the bust take place?
In June 2013.
Are there any other interesting aspects about this article?
Tambo's grave was declared a National Heritage site when he died.
Where was Tambo buried?
CANNOTANSWER.

Question: Was there anything significant after his death?
Self-contained rewrite: Was there anything significant after Tambo's death?