Many tourists visit the Riviera Maya Mexico for the world class resorts and the beautiful beaches. However, this popular stretch of coast also offers the opportunity for a variety of outdoor activities, and is also home to one of Mexico’s most important archaeological sites. The walled city of Tulum thrived between the 13th and 15th centuries and was one of the last cities to be constructed by the Mayans. It’s easy to find and book day trips to the ruins from many area hotels and resorts; expect to pay around $40 for a half day tour, and area public buses also make stops at Tulum. Once there, some of the highlights include the Temple of the Frescoes, the Castle and the Temple of the Descending God. And one of the best things about visiting Tulum is its dramatic location overlooking the Caribbean Sea.