Francesco Borromini was a Roman architect who is considered one of the greatest exponents of Roman architecture.

Sign Borromini what century and a half later would Romanticism. He is the first romantic and commits suicide young and lives in a rational way. He learned of Bernini and worked with him. A conflict between Bernini and Borromini was created by the orders of the Church. Her admiration for Michelangelo, but he will not be mannerist. It is an innovative architecture.
Borromini’s work is very original, unprecedented clear except the partial influence of Michelangelo, who admired architect. The main elements and architectural criteria used in his work, include:

1. giant Order, used in complementary and alternately.
2. Central Level, which would be a distinct tendency of the baroque churches
3. Spatial Dynamism
4. Using light
5. Incorporation of sculpture
6. simple and inexpensive materials
7. modular geometric Scheme, beating the arithmetic module of the classic architecture.

Church of San Andrea della Valle, Rome

The facade of the Church of San Andrea della Valle is the work of Carlo Maderno Bernini but also collaborated in its design.
Before the songwriting was addictive churches, the nave and then the annexes or that crossed aisles he added. The spaces of each of these ships were Unitarians. Were separate spaces. With Borromini space is unified in some way, giving continuity and fluidity that formerly lacked the churches.

Barberini Palace. Rome (1625-1633)

This palace, one of the most impressive and significant of the Baroque period, was initiated in 1625 by Carlo Maderno and helped by Borromini, and was completed in 1633 by Gian Lorenzo Bernini, whom the facade of the porch topped by a double enclosed gallery is due flanked by colorful windows.

Bernini is also the staircase, and Borromini the elliptical staircase under the portico.
Borromini designed the vertical ladder is a masterpiece that maintains symmetry and conferring fluidity and dynamic Baroque.

Palazzo della Spada. Rome

Borromini creates a false perspective in the hall of the palace, creating a false appearance, through a corridor inclined at an incredible optical effect.
The gardens entrance is through a corridor in the middle of the palace. It represents a false perspective, an optical illusion 37 m corridor when actualdata:text/mce-internal,content,perspely has a span of 8 meters. And sculpture background is apparently giant size is only 60 cms. It is a trompe l’oeil that fools the eye, and pure showmanship trick of perspective. Pure Baroque.

San Carlo at the Four Fountains

San Carlo alle Quattro Fontane is a church built between 1638 and 1641 in Rome. Designed by Francesco Borromini (1599-1667), it is one of the masterpieces of Baroque architecture.

The facade of the church of the four sources is complete scenery, is a façade where space turns. The curves of the facade more expressive look, the building is changing because the perception of the building changes at every turn, seems to live, it is completely dynamic. It is a formal trick that presents all curved. It’s a very organic building.
The elliptical dome on scallops. It has a light control through the lantern of the dome. This element was important because controloa the effects of light.

S. Ivo alla Sapienza. Rome

S. Ivo alla Sapienza is a church of Rome, considered a masterpiece of Baroque architecture, built by Borromini in 1642-1660.
In this church it is created as a result of a fold at the top. The plant by two equilateral triangles that are attached and serve as plant configuration is created. The Baroque is the theory of Leibniz fold.