Machu Picchu, Tenochtitlán, Heracleion. The list of lost cities found in jungles, deserts or under the sea by modern archaeologists goes on. Once myths, now part of history. El Dorado, Atlantis, Z and many others still fuel the imagination of dreamers who hope to one day stumble upon ruins.
The city of Angkor was never lost, per se, but so much of it's history has been forgotten that it's almost as it has. The Khmer Empire was the greatest on earth and to this day parts of it are still being unearthed.
Capital of the great Khmer Empire in the 12th century, Angkor must have been a magnificent place to be in it's time. With a population estimated at the time of more than a million people, it's total area was greater than today's Paris and has more stones than all structures in Egypt combined.
In Angkor (word that stands for capital in sanskrit) we find the symbol of Cambodia, pictured in the country's national flag, the Angkor Wat (Temple City or Pagoda City).
The Angkor Wat was the first temple I visited during my stay in large complex. It's the largest religious monument in the world covering 162.6 hectares of land and was built by Suryavarman II in dedication to the Hindu god Vishnu, the guy that unified the empire.
Cambodia is HOT and HUMID. I can't stress more these two words more without waking up the neighbors. Go early and take tons of water. I mean at least 3 liters per person. There will be vendors selling you stuff everywhere. Water is one dollar.
Here is a map so you can better understand the place.