An 18th-century church widely seen as a marvel of Russia's wooden architecture has been destroyed by a fire.The blaze at the Dormition church in Kondopoga in Russia's northwestern region of Karelia broke out Friday after a group of tourists visited the building. The church, built in 1774 on the shores of Lake Onega, was broadly admired as one of the most remarkable examples of Northern Russia's wooden architecture. Local authorities have promised to build a replica.