Santa Maria del Popolo
Soon after its transfer to the prestigious Lombard Congregation Santa Maria del Popolo was reconstructed between 1472 and 1477 on the orders of Pope Sixtus IV. This was part of the ambitious urban renovation program of the pope who presented himself as "Urbis Restaurator" of Rome. The medieval church was entirely demolished and a new three-aisled, Latin cross shaped basilica was built with four identical chapels on both sides, an octagonal dome above the crossing and a tall Lombard style bell-tower at the end of the right transept. The result of this reconstruction was an early and excellent example of Italian Renaissance architecture in Rome. In spite of the many later changes the basilica essentially kept its Sistine form until today.
Luigi Poletti (architect)
Poletti also added a choir to the Pantheon in 1840 and built the theaters in Fano (1845–1863), Rimini (1843–1857) and Terni (1840–1848). He rebuilt the church of San Venanzio in Camerino, which had fallen in the earthquake of 1792. After the damage from an earthquake in 1832, he rebuilt (1836–40) the Basilica of Santa Maria degli Angeli in Assisi. He built the Cathedral of Montalto delle Marche on the foundations that had been started under Pope Sixtus V. He designed the church of San Filippo in the town of Nocera (disambiguate?). He completed the chapel and altar of Santissima Maria (called dell'acqua) in San Francesco in Rimini. He built a similar chapel in Fossombrone. He designed the lighthouse and arsenal in the port of Ripa Grande. He designed the Palazzo Ceccopieri in Via di Monte Catino. He designed a number of funereal monuments in and around Rome including one dedicated to Vincenzo Casciani (1832) in the Costa Chapel, Santa Maria del Popolo and to the papal architect Cavalierie Pietro Bosio in the Campo Santo.