material

prestressed concrete

Ostankino Tower, tower top

Ostankino Tower, tower top Moscow, Russia

Ostankino Tower, northwest elevation

Ostankino Tower, northwest elevation Moscow, Russia

Ostankino Tower, upper part

Ostankino Tower, upper part Moscow, Russia

San Roque González de Santa Cruz International Bridge, north elevation

San Roque González de Santa Cruz International Bridge, north elevation Encarnación, Itapúa, ParaguayPosadas, Misiones, Argentina