Many Riviera Maya resorts display carvings, statues and symbolism of the Mayan culture because of the numerous Mayan cities that thrived along the Yucatán Peninsula for more than 1,600 years. Chichén Itzá is the most famous and a UNESCO World Heritage Site. Tulum is the second most popular archeological ruins. However, the largest former Mayan city is in Cobá. Surprisingly, few tourists visit it despite having the largest pyramid and the only one you can still climb. Smaller Mesoamerican ruins are Xcaret, Playacar, Xel-Há and Muyil.