4.7 mThat is how far the ground came down at the old Largo do Castelo. To make the new street straight and level, the top of the hill was cut away. In August 1949, the Diário de Coimbra spoke of “uns três metros” — some three metres — of lowering and, two days later, of about four near the Largo do Castelo; on the Praça da Porta Férrea, of little more than two.Documented[1]Measured[6]
19 – 27 mThat is how high the roofs of the new blocks stand above the Rua Larga, from Letras to Matemática. The University tower, measured the same way, is 34 m. Of the demolished houses we know the number of storeys, not the height.Measured[6]
44%Of today’s axis, between the Porta Férrea and the top of the stairway, was rooftop in 1934. The old Rua Larga curved; the new one runs straight, through the blocks. Then it goes down 125 steps, in 5 flights.Measured[2]Documented[1]