This church built in the 16th-century has one of the most beautiful and unique renaissance style doors in Gipuzkoa. It has Aizarna a Flemish triptych from the 16th-century, a work from the Antwerp School workshop.
The Assumption of Mary Parish is from the XVI century. Inside, one can view the Lili Family funeral chapel.
Aritxezarra is one of Zestoa's first stone buildings. After the XVI century fire that destroyed the village, stone replaced timber as the primary construction material. In the same century, Zestoa underwent significant demographic growth. Its walled grounds could not hold all of its new inhabitants and for this reason, the "Stone House" or "Arretxea" was built outside village walls.
Built in the 16th-century over on old hermitage, modified in the 18th-century despite which it is still in place. It has a single nave and ribbed roof.
Lau Iturri or “Four Spouts” is next to the Royal Road’s old bridge. It was here where neighboring communities came to collect their water supply and where women gathered to do the washing.
On a nearby street, we can discover the XVI century urban palace that was built outside the village walls. It owes its name to one of its residents, the educated baccalaureate Juan Martinez de Olazabal. Its most remarkable feature is the monolithic stone in the main door's arch.
This XVI century house is property of the Lili Family. It was used as a vestry before going to mass or into town and thus, its nickname: "Jantzi-Etxea" or "The Dress House." It was originally built as a defense at one of the entrances to Urola's Royal Road and it has recently been remodeled to respect its original characteristics.
Since it was founded in the 14th-century, Zestoa was surrounded by walls. Today we can see one of the original gates that served as entry to the town called San José (earlier know as Arretxea) and a second rebuilt gate called Inmaculada.