Korea's prehistoric petroglyphs have been designated as a UNESCO World Heritage site. The move comes after Korea lost a vote to add Japan's Hashima Island to the UNESCO World Heritage Committee's agenda. To celebrate this new designation, Ulsan plans to revamp its city tour programs starting July 19, with added daytime and family tours that include visits to petroglyph sites and the Petroglyph Museum. The city will also develop a historical walking trail, investing 17.5 billion won by 2030 to create an 11.6-kilometer path featuring three sections of trails and historic roads.