Click on imageIt's arguably one of Canberra's most stunning buildings but many people do not know what the Christ the Redeemer Mausoleum is or where it hides.

The light-filled marble and granite building tucked away in the green surrounds of Woden Cemetery is strong enough to withstand an earthquake.

It's also the resting place of hundreds of Canberrans, mostly Italian Catholic, who have died since it opened in 2001.

Demand for a space inside the building was so great it has had a $2.5 million extension, with 272 crypts added and, for the first time, a number of columbariums to house ashes.

Minister for Territory and Municipal Services Shane Rattenbury officially launched the completed extension on Wednesday.

It was blessed by Father Julian Wellspring​ who described the mausoleum as "a place of rest and hope" – "may buried bodies here sleep in [God's] peace".

Mr Rattenbury said 25 of the new crypts had already sold since the "seamless" extension was completed.

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