Opus Dei, the most mysterious and controversed institution of the Catholic Church.

The Opus Dei crypt situated at the international headquarters, villa Tevere, Rome, an architectural grouping designed by Opus Dei founder Josemaria Escriva de Balaguer, where the Prelate's councellors reside and where Echevarria's two predecessors are buried, Escriva de Balaguer and Alvaro del Portillo.The faithful come from all over the world to meditate at the graves of the two first Opus Dei leaders. Two cherubs surround the Opus Dei coat of arms: the cross of the Christ within a circle symbolizing the Earth and the rose which the Opus Dei founder found in the Pyrenees in 1937 as he was asking God to send him a tangible sign so as to reassure him on the soundness of his choices. (Photo by Eric VANDEVILLE/Gamma-Rapho via Getty Images)