Visit TIKAL

In the heart of the jungle, surrounded by lush vegetation, lies one of the major sites of Mayan civilization, inhabited from the 6th century B.C. to the 10th century A.D. The ceremonial centre contains superb temples and palaces, and public squares accessed by means of ramps. Remains of dwellings are scattered throughout the surrounding countryside.

Tikal was a Maya city of great power and size, the largest of Maya cities during the "Classic Era" over 1000 years ago. Many beautiful buildings have been uncovered and many more wait to be discovered. Amongst the many Maya sites in Central America, Tikal is perhaps the most breathtaking because of the scattered impressive buildings which have been restored in an area with many more ruined buildings still enveloped by the jungle. The sight of the temples poking through the canopy is quite awesome. You can climb to the top of a few of the temples and get panoramic views from above the tree tops.
Source: wikitravel.org