7. Chhatrapati Shivaji Terminus -- Mumbai, India
Why it's cool: Where to begin... it's a UNESCO World Heritage Site, like the Pyramids of Giza or Persepolis. So, you know, it's pretty important. Originally constructed in the late 1870s, it took ten years to complete, and cost "£260,000 when it was finished in 1888", which by today's standards was probably around half a billion pounds. Finally, the Terminus was prominently featured in Slumdog Millionaire -- y'know, pretty cool.