one of the 7 wonders of the world: Angkor Wat
Siem Reap, Cambodia is the proud home of the temples of Angkor Wat, one of the seven wonders of the world. Why are they wonderful? Comprised of more than 100 temples, Angkor Wat served as a metropolis for religous, social, and administrative buildings. They also were built to mimic one of the constellations at that time. The sheer size of it all is humbling, making it pretty easy to avoid the mobs of tour groups around.
This was quite possibly the best sight I've seen during my travels in the past 15 months. No other place I've been to was as mystical and relevant as the temples of Angkor Wat. Unlike many other ancient marvels, this sight is still used on a daily basis by the locals. Khmer people still come here to worship. Monks still meditate and chant on the temple grounds. Families still live next to them. The corroded stones are the only reminders that time, centuries, have passed.