19. Chichen Itza, Mexico
One of the oldest civilizations to see how people lived thousands of years ago is the Mayans. Their biggest mark left in the world is located in Chichen Itza, Mexico. At the time, the Mayans used the temple as a place of human sacrifice, a practice that many civilizations used for various reasons. While most people feel this is a horrible practice today, during the days of the Mayans, people wanted to become the chosen one for sacrifice as they saw it a privilege.
Today, you can look up the stone steps and imagine heads rolling off the stairs and onto the ground, where people would continue to celebrate and honor the sacrifice. One of the best times to go is in the early morning or late afternoon when the crowds start dying down. You can get up close and personal with the temple. While you can visit the temple any time during the year, the best months are May and June.