A trove of 2,000 delicate gold spirals that date back to the Bronze Age was recently discovered in Denmark -- and archaeologists are trying to figure out what the ancient coils were used for.

The 3,000-year-old spirals are made of thin, flattened gold wire and were found during an excavation in the town of Boeslunde, on the Danish island of Zealand.

Each tightly wound coil is about one inch long. All together, the gold spirals weigh more than half a pound.