Burrowing hundreds of feet into the second-largest glacier in Europe, the world’s largest system of ice tunnels and spaces (including a chapel and cafe and exhibit spaces) are being excavated to connect visitors with a massive natural blue-ice cavern buried deep beneath the surface of Iceland.

This incredible complex is set to open within the next few months – just in time for a summer vacation.

Set inside Lanjoekull (Long Glacier), the Ice Cave rests on hundreds of feet of ice and is set nearly 5,000 feet above sea level – naturally, its location within a glacier means it can be accessed year-round.

Combined with its record-breaking size, these factors make it unique among global ice architecture projects.

Read and see more Images via Glacier City: Icelandic Ice Cap Carved Out for Year-Round Use | Urbanist.