10. Dwarka, India
The name of the city of Dwarka literally means “gateway to heaven” in Sanskrit and you can convince yourself of this easily… if you are a good deep diver. This is the oldest lost city that has been discovered ever, being considered to be inaugurated 5000 years ago, surpassing the 4000-year-old Harappa. The ruins of the ancient Dwarka were found suddenly in the Indian Bay in 2002, during a random control of the water contamination level from the area. The Mesopotamian city has well preserved sewerage, well-planned streets, fortifications, as well as smaller objects like shards, beards, sculptures and human bones. It is believed that the city, that was positioned on the shore, was swallowed by the rising level of water from melting glaciers.