The city of Al Ain, a UNESCO World Heritage site, is famed for its palm oasis and ancient beehive tombs, but there is another archaeological monument dating back to the Bronze Age. Located next to the Omani border, the Hili Archaeological Park is a popular hangout for local families, but as the name suggests, it’s a lot more than just a children’s playground. Hili is considered the largest archaeological site in the United Arab Emirates. Its crown jewel is the Grand Tomb, believed to be over 4,000 years old. The tomb…