Indong Fossil Museum is one of the largest fossil museums in Asia. It first opened its doors on June 19, 2010. Exhibitions both in and outside of the main building display a wide array of meteors, flowers, fruits, animals, wood, and shells in fossil form. Colorful fossils and columnar joints (hexagon or triangle-shaped columns formed out of the cooling of lava) will take visitors to a world that has never before been exposed. Other attractions include the Underwater Ecology Hall, Mongol Experience Hall, exotic suiseki, and garden stones. Fossils come from various countries such as Indonesia, Malaysia, China, and Brazil. Two items, in particular, captivate visitors: a 600-ton columnar joint and a 55m-high tree fossil. In addition, outdoor exhibitions offer rare opportunities for visitors to touch fossils. Every architectural piece is made out of environment-friendly wood, and visitors can enjoy a leisurely cup of tea next to the pond in the museum.