Tunnel:

		Rustenfeld, Austria, Roadtunnel
		Atzenbrugg, Austria, Railroad
		Hankenfeld, Austria, Railroad
		Saladorf, Austria, Railroad
		Dovodnog, Croatia, Canaltunnel
		A4 Jena , Germany, Roadtunnel
		Ermenek, Turkey, Headrace-tunnel

 

other References:

Egg Shaped Digesters Standart Digesters BIMA-Digesters Climbing formwork - Steel Climbing formwork - Wood Self excavating tanks/shafts Segment formwork Water Towers Windmill Towers Telecommunications Towers Other Towers Funnels Silos with internal cones Special Structures Tunnel