Excellent example of a cruciform church, possibly the first one of its kind ever built. It has the shape of a Greek cross, totally vaulted, a single nave, an apse and a portico forming two simetrical lower and narrower ends, and a crossing nave of equal height forming a balanced ensemble with the main one. It has a lantern covered by a hipped roof over the crossing of both.

Built around 940 by St. Rosendo in memory of his brother Froila, this small oratory of 8.5 x3.85 x 6m, built with large blocks of well cut granite, consists of three small areas communicated through horseshoe arches: a lobby covered with a horseshoe dome, a central nave of groin vault, both rectangular, and a horseshoe shaped apse inscribed in a square wih shell dome.

Small rectangular hermitage possibly built in the 15th century in which elements of one or several  High Medieval churches were reutilised, among which a magnificent horseshoe arch points out, of Visigothic trace, supported by impost capitals with a decoration that recalls the Ramiro art style, upon columns decorated and composed bases. It is also very interesting an Asturian type window with excellent openwork lattice in stone.

It is a small building with rests of three naves, possibly from the Visigothic period, although its origin could be of an earlier date. The most interesting sector is the apse’s wall, built with large granite ashlars of Roman tradition, similar to St. Eulalia de Bóveda, that preserves two mullioned windows with dry cap and very pronounced horseshoe arches, of clear Mozarabic descent.

At the end of the twelfth century the regular canons of Saint Augustine began the present church of Santa Marina de Aguas Santas in honor of the saint martyred in the 2nd century. Their beautiful history is followed in all the surroundings, but they do not conclude it. It will be the Templars who do it in the 13th century. The church has a basilical plan with three naves covered by a wooden coffered ceiling on the façade arches and three semicircular apses, much larger than the central than the lateral ones.

Esta iglesia, construida en grandes sillares de granito en la primera mitad del siglo X, es de una sola nave y tenía un ábside en forma de herradura inscrito en un cuadrado, hoy desaparecido. Muy reconstruida en diferentes épocas, conserva sólo dos puertas laterales en forma de herradura con alfiz, de aspecto claramente mozárabe y los restos de dos ventanas originales de arco de herradura en la actual fachada principal.

The foundation stone from the year 573 has appeared, so it must originally have been a Swabian Christian hermitage. At the end of the 9th century, the monastery was refounded, to which Alfonso III granted privileges. It consists of three chapels excavated in the rock, communicated with each other, with horseshoe arches on attached columns and capitals carved in the same rock; It preserves the primitive altars in the form of tables and also decorated with horseshoe arches.

Iglesia románica cruciforme, de una sola nave, transepto y triple cabecera, situada en un paisaje excepcional en el cañón del río Sil. Conserva parte de un claustro y todo el conjunto posee una magnífica decoración.

Consagrada en el siglo XII, la iglesia de Santo Estevo es uno de los más bellos ejemplares del románico gallego. Su planta, espaciosa y proporcionada, es basilical y está dividida en tres naves de cuatro tramos, con los tres ábsides en la cabecera. Ésta y el tramo siguiente corresponden al románico, mientras que los dos posteriores se asocian a un gótico avanzado