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In historic Massachusetts, some iconic sites remain closed or have limited schedules - The Boston Globe
![Premium Photo | Entrance to a secret abandoned concrete underground bunker from the times of the ussr. the entrance is closed by a strong metal grill Premium Photo | Entrance to a secret abandoned concrete underground bunker from the times of the ussr. the entrance is closed by a strong metal grill](https://img.freepik.com/premium-photo/entrance-secret-abandoned-concrete-underground-bunker-from-times-ussr-entrance-is-closed-by-strong-metal-grill_96336-2232.jpg?w=2000)
Premium Photo | Entrance to a secret abandoned concrete underground bunker from the times of the ussr. the entrance is closed by a strong metal grill
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Closed Hermetic Bunker Door With No Entry Warning Stock Photo, Picture And Royalty Free Image. Image 88647122.
![Closed off bunker (likely from the Second World War) in Lugagnano di Sona, Northern Italy (photo taken from public ground). Stock Photo | Adobe Stock Closed off bunker (likely from the Second World War) in Lugagnano di Sona, Northern Italy (photo taken from public ground). Stock Photo | Adobe Stock](https://as1.ftcdn.net/v2/jpg/02/25/35/64/1000_F_225356477_rw7bQK2KXItQWUTFNVlvcnsfqHOm6Tpn.jpg)
Closed off bunker (likely from the Second World War) in Lugagnano di Sona, Northern Italy (photo taken from public ground). Stock Photo | Adobe Stock
![Power Ranch Golf Club launches greens and bunker renovation project | The Daily Independent at YourValley.net Power Ranch Golf Club launches greens and bunker renovation project | The Daily Independent at YourValley.net](https://www.yourvalley.net/uploads/original/20230502-145307-GIL-biz-Power%20Ranch%20Golf%20Course.jpg)