In the region of Mantineia, Arcadia, stands a church unlike any other in Greece.

Rising out of the plain of Mantineia, just about 15 kilometers from Tripoli, this unusual yet captivating structure catches the eye of all who pass by. The Church of Saint Photini of Mantineia sits directly opposite the archaeological site of ancient Mantineia — and it's nothing short of extraordinary.

Built in the 1970s, the church is an eclectic blend of ancient Greek architectural forms and Byzantine influences. It is the life’s work of architect, painter, and iconographer Kostas Papatheodorou, a student of the renowned Greek architect Dimitris Pikionis.

What makes the church even more unique is its construction — made entirely from local, natural materials like stone, tiles, and marble, with absolutely no cement used.

Many visitors are initially drawn to the area simply because they’ve heard tales of this so-called “most unorthodox church in Greece.”

According to traveltripolis.gr, the church’s dedication to Saint Photini reflects Arcadia’s historical connection with light. In fact, Mount Lykaion, a name derived from the Greek word for “light,” shares this symbolism — as does the name Lycaon, a mythical founder of Arcadia. The iconography inside the church continues this spirit of cultural synthesis: the saints are depicted with features reminiscent of ancient Greek philosophers. You’ll also find references to the cult of Isis, once widespread in Arcadia.

Watch the stunning aerial video by Up Drones below and see for yourself what makes this church so uniquely compelling.