Through May 8 The Glory of Ukraine Joslyn Art Museum, 2200 Dodge St. Free with regular admission, Hours vary (open late Thursdays, free Saturday mornings) 342-3300, joslyn.org The promo for a new Joslyn exhibition had me at "centuries old, rarely seen icons and relics from the Ukraine's Monastery of the Caves." After all, it's not every day you see ancient religious artifacts from a spooky labyrinth of catacombs devoted to Orthodox Christianity buried deep within the Slavic hinterland. That's not all. See a selection of tools, weapons, decorative objects and worship items from various cultures, including the horse-riding nomadic groups the Cimmerians and Scythians, as well as the Sarmatians, the Greeks, the Celts, the Goths and the Huns. Taken together, it's a display of Ukrainian spiritual and national treasures not likely to be seen in the same place at the same time outside the Ukraine. The Joslyn is presenting a series of related educational programs during the exhibit's run.