Placed on a plateau of the Vale, on the foot of the Codés saw, to 731 m. of altitude Aguilar of Codes is a good example of Town - way and fortitude, since it was a secondary route of the Milky Way. proper downtown constitutes a set of big interest preserving part of his walls and numerous house emblazed.
In the urban enclosure, Street of the Sun porch, it thinks up for the line of the ancient defensive wall and they dominate the buildings in stone or sillarejo, some of the year 1600. Main road other one of the arteries of the locality. The constructions over that they predominate are Renaissance and baroque with escutcheons of the XVIth century. Between them, he emphasizes a Palace baroque of the XVIIIth century. The Walls, medieval, date of the century XIII and his state of conservation is not very good.
In the Church of the Invention of the Santa Cruz, Major big Reredos, rococo, of the XVIIIth century in golden wood, the most significant thing centers in the bank.
One of the most beautiful chapels of Earth Estella is her Chapel of San Bartolomé, tardorrománica, of the XIIth century. Crismon of the chapel of San Bartolome is an important piece, the most beautiful, of big size and thin size influenced by the copy of Errondo (Unciti), and the sketches of Pony, Huesca and Armentía. To circulate, trinitario, of eight pearly arms, with cross tilde interior of the vain one of the P, and frame. Inside him, centred and superposed, Agnus Dei of wide proportions is located supporting, between the forelegs, the sacred Book. The frame circular and the base of the eardrum they carry legends, and on the outside, two angels, kneeled down and with the unfolded wings, support the hoop. After them, two rosettes refill the hollows of the corners. Them letters Alpha and Omega of beautiful touch, they are recorded jerky to punch in the base of the circle (in clear relation with the crismón of Magdalen de Tudela), they are supported in relief P and S, winding this one to the arm of the most usual form. (Source web page Crismones of I catalog of Caustros de Juan Olañeta).