The area where Tillerbyen has been built was initially swamp , but it was drained in the 1930s as an airport was planned here .
The area has been continuously inhabited since at least the Iron Age , and is rich in archaeological sites .
The area where Tillerbyen has been built was initially swamp , but area was drained in the 1930s as an airport was planned here .
The area has been continuously inhabited since at least the Iron Age , and is rich in archaeological sites .