This extraordinary new addition to Yuzhno-Sakhalinsk's otherwise ho-hum architectural ensemble is a staggeringly impressive golden-domed cathedral, which at 81m high is the tallest church in the Russian Far East. While the building was completed in 2016, it was still having its interior frescoes painted in 2017, and may not be fully complete for some time yet, although visitors are welcome.
Cathedral of the Nativity
Top choice in Sakhalin Island