Most of the attractions in Soi Dao are religious heritage sites, and the Cathedral of the Immaculate Conception in Chanthaburi is the most prominent religious site for Christians visiting or living in Thailand.
Built in a Gothic and French style, this is Roman Catholic Church is an imposing building that towers over the courtyard. The first church on this site was in 1711 and ever since, this church has been renovated about 4 times in just the 19th century. The church that exists now, took a solid 10 years to build and perfect, with its popular twin spires removed to make the church inconspicuous during the World War II attacks. The building was granted the status of being called a cathedral only in 1944.