This extremely decorative Baroque style was influential in plenty of churches and cathedrals constructed by the Spanish within the Americas. Another main innovator of the Italian High Baroque was Francesco Borromini, whose major work was the Church of San Carlo alle Quattro Fontane or Saint Charles of the Four Fountains (1634–1646). The sense of movement is given not by the decoration, however by the partitions themselves, which undulate and by concave and convex parts, including an oval tower and balcony inserted into a concave traverse. The interior sources tell me was equally revolutionary; the main space of the church was oval, beneath an oval dome. The interiors of Baroque church buildings became increasingly ornate within the High Baroque, and focused across the altar, usually placed under the dome. The most celebrated baroque decorative works of the High Baroque are the Chair of Saint Peter (1647–1653) and St. Peter’s Baldachin (1623–1634), each by Gian Lorenzo Bernini, in St. Peter’s Basilica in Rome.