The Monastery of the Three Hierarchs of Iași is a valuable architectural monument in Romania being located in the traditional center of Iași, on Ștefan cel Mare și Sfânt Boulevard. The Church of the Three Hierarchs was built by Voivode Vasile Lupu, between 1637-1639, as a princely necropolis, reflecting the founder's aspiration towards the Byzantine world, combining traditional structures and forms with precious materials and a sumptuous decoration.

The Metropolitan Cathedral of Iași, dedicated to Saint Parascheva, the Presentation of the Lord and the Holy Martyr George, is the cathedral church of the Metropolitanate of Moldova and Bukovina, one of the six Orthodox metropolitan cathedrals in Romania.

The Palace of Culture in Iași is an emblematic building, built between 1906 and 1925, within the perimeter of the former medieval Moldavian princely court, on the site of the former princely palace.

The "Saint Nicholas" Church in Iași is an Orthodox church in the municipality of Iași, built by Stephen the Great in 1491-1492 and rebuilt in 1884-1904 by the French architect André Lecomte du Noüy, by demolition and reconstruction on the same foundation and approximately in its original form, removing later additions. It is located in the city center, on Str. Anastasie Panu no. 65, near the old Royal Court, between the Palace of Culture and the House with Arcades (Casa Dosoftei).