Santi Vincenzo e Anastasio (Trevi)

Directly across the small piazza from the Trevi Fountain — many tourists never notice it because of the fountain. Famous for an unusual relic: from 1590 to 1903, the hearts and viscera of every deceased pope were stored here, behind a marble plaque on the right of the high altar that lists their names. Twenty-five popes' hearts in one place. Otherwise a relatively modest 17th-century church.