San Marco Evangelista al Campidoglio, Rome

It was first built in 336 by Pope Mark, whose remains are in an urn located below the main altar.

Besides the addition of a Romanesque bell tower in 1154, the major change in the architecture of the church was ordered by Pope Paul II in 1465–70, when the façade of the church was restyled according to the Renaissance taste with a portico and loggia, using marbles taken from the Colosseum and the Theatre of Marcellus.

The last major reworking of the basilica was started in 1654-57 and completed by Cardinal Angelo Maria Quirini in 1735–50.

The floor of the church is below the ground level of the Renaissance period, and therefore steps lead down to the interior.

However, the basilica shows noteworthy elements of all her earlier history: In the portico are several early Christian grave stones, as well as the gravestone of Vannozza dei Cattanei, the mistress of Cardinal Rodrigo Borgia.

Madama Lucrezia is one of the "talking statues" of Rome , and is located next to the basilica entrance. It was once the bust of a statue of the goddess Isis , to whom a temple was dedicated in Rome not far from its current location.