Sigiriya, (Lion’s rock) is an ancient rock fortress and castle/palace ruin situated in the central Matale District of Sri Lanka, surrounded by the remains of an extensive network of gardens, reservoirs, and other structures.
Explore the ancient caves of Hang Son Doong, Vietnam. Hang Son Doong is one of the largest caves in the world and features a fast-flowing underground river. For spelunkers, exploring Hang Son Doong is the equivalent of scaling Mount Everest.
Poland's Mysterious Crooked Forest: In a tiny corner of western Poland a forest of about 400 pine trees grow with a 90 degree bend at the base of their trunks - all bent northward. It is surrounded by a larger forest of straight growing pine trees.
the Dar al-Hajar (Rock Palace) perched atop a rock pinnacle at the Wadi Dhahr Valley in Yemen. Classic example of Yemeni architecture built in 1786 by Imam Mansour Ali Bin Mahdi Abbas; in the Imam Yahya Hamid Al Din extended it as a summer residence.
The Maijishan Grottoes are a series of 194 caves cut in the side of the hill of Majishan in Tianshui, Gansu Province, northwest China. This example of rock cut architecture contains over Buddhist sculptures and over square meters of mu.