The remains of the infamous ruler were found in 2012 under a car park in the city of Leicester.
Around a hundred visitors were on hand to watch city mayor Peter Soulsby cut the ribbon on the USD 6.8 million, 5 million euro new visitor centre at the discovery site.
Early arrivals at the building, in an abandoned school close to Richard's grave, were able to examine a replica of his skeleton made using a 3D printer.
Another tells of the momentous and painstaking work carried out by archaeologists that led to the discovery and identification of the king in a makeshift grave at the former site of a medieval friary.
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Only then can visitors examine the excavated grave, which the centre says has been "preserved in a quiet, respectful setting... Fitting for the last resting place of a slain warrior and anointed monarch."
"The feedback from people is really excellent, people are particularly enjoying the graveside area."
British judges in May finally ended a bitter debate over Richard's reburial, ruling that his remains should be laid to rest in a cathedral near to where he was found.
Shakespeare portrayed Richard as a scheming hunchback who ordered the murder of two young nephews barring his way to the throne.
Descendants of the ill-famed king had fought for his skeleton to be buried in York Minster, in the northern city that gave its name to Richard's royal house.
"It is time for Richard III to be given a dignified reburial, and finally laid to rest," the judges said in their ruling.
British authorities have drawn up plans for a grand re-interment ceremony at Leicester Cathedral, which is due to take place early next year.
Richard, the 14th great-granduncle of Queen Elizabeth II, became the last English king to die in battle.
His death marked the end of the war between the houses of Lancaster and York -- named after their respective heraldic symbols of the red and white rose -- and the rise of the Tudor dynasty.