US builds world's most expensive embassy worth â¹6,400 crore
The US has unveiled its new embassy in London which is believed to be the world's most expensive embassy. The structure which is worth over â¹6,400 crore ($1 billion) has been designed like a crystalline cube without visible walls. The embassy has a perimeter pond with recycled waterfalls, glass walkways, pub, gym along with solar panels on its roof arrays.