Travel
Facebook/SteelStacks
The giant steel mills at SteelStacks, in Pennsylvania, are the remainder of the location's former history as one of the nation's largest steel manufacturing companies.
In countries around the world, there are music venues that have been built in breathtaking natural and historical locations that include underground caverns and 19th-century forts.
From Ireland's Slane Castle, which has hosted musicians like the Rolling Stones and David Bowie, to Sweden's Dalhalla amphitheater, built in a former limestone quarry, here are 15 fascinating places you can enjoy live music around the world.