"White-legged lemurs cling to the top of a sharp limestone peak in the ‘Grand Tsingy’ stone forest in Madagascar" (source)
Bayon Temple, Cambodia
Built around 1190 AD
Tassili n’Ajjer, Algeria
Located in an area that has been dry for thousands of years, Tassili n’Ajjer is famous for its neolithic archeological sites, as well as its ancient rock art.  The artwork depicts a time when the area was lush and fertile, and dates back as early as 10,000 BC.  They illustrate hunting and dancing, herds of cattle and other wild animals, as well as what many archeologists refer to as “The Martian”.  Archeologists have identified 15,000 petroglyphs to date. 

Nileometer - Kom Ombo Temple (by René Eriksen)
Basalt Pinnacles, Scotland 44 / REBLOG

Drombeg Druid Circle, Ireland.
1207 / REBLOG
Watkins Glen State Park, New York
"Lost City" of Petra, Jordan
Built in 1200 BC
Gateway of The Sun at Puma Punku, Bolivia
Ajanta Caves, India
These caves date back as early as 200 BC, and are known for their beautiful stonework, paintings, and architecture.  It is said that they were abandoned in the 7th century AD when Buddhism began declining all over India.  The caves are some of the oldest known Buddhist temples and shrines and are still considered sacred.  All interior spaces and architectural design, as well as statues and stonework on the walls were created by chiseling away at and removing rock from the mountainside.  Engineers today have no explanation as to how it was cut from the 70 foot high granite cliff over 2000 years ago.