Sigiriya Rock Fortress- Sri Lanka

Sigiriya is an ancient palace located in the central Mathale District  near the town of Dhambulla   in the Central Province,Sri lanka. The name refers to a site of historical and archaeological significance that is dominated by a massive column of rock nearly 200 metres (660 ft) high. According to the ancient Sri Lankan chronicle the Culavamsa, this site was selected by King KKasyapa (477 – 495 CE) for his new capital. He built his palace on the top of this rock and decorated its sides with colourful frescoes. On a small plateau about halfway up the side of this rock he built a gateway in the form of an enormous lion. 

The name of this place is derived from this structure —Sīhāgiri, the Lion Rock. The capital and the royal palace was abandoned after the king's death. It was used as a Buddhist monastery until the 14th century.

Sigiriya was the largest and most sophisticated single construction project ever undertaken in ancient Sri Lanka. The ruins of the Sigiriya Rock Fortress seen today are less than twenty percent of the structures that once graced the area. Most buildings were made of wood. Consequently, there is very little evidence of these structures. Those built with stone and brick have survived the ravages of time and provide us a rare glimpse of the opulence and grandeur of an ancient era. Many ruins still lay hidden in the forest and are yet to be discovered. Sigiriya is a UNESCO World Heritage Site.

                                         Sigiriya Rock, Sri Lanka

Angkor Wat- Temple in Siem Reap, Cambodia

Angkor is one of the most important archaeological sites in South East Asia. Stretching over some 400 km2, including forested area, Angkor Archaeological Park contains the magnificent remains of the different capitals of the Khmor Empire, from the 9th to the 15th century. They include the famous Temple of Angkor Wat and, at Angkor Thom, the Bayon Temple with its countless sculptural decorations, UNESCO has set up a wide-ranging program to safeguard this symbolic site and its surroundings.

Angkor is one of the most important archaeological sites in South East Asia. Stretching over some 400 km2, including forested area, Angkor Archaeological Park contains the magnificent remains of the different capitals of the Khmor Empire, from the 9th to the 15th century. They include the famous Temple of Angkor Wat and, at Angkor Thom, the Bayon Temple with its countless sculptural decorations, UNESCO has set up a wide-ranging program to safeguard this symbolic site and its surroundings.

And it's also the largest living religious monument in the world is also the no:1 Travelers' Choice Landmark in the world. Angkor Wat is a true wonder, a magnificently mesmerizing ancient temple site built in the 12th century. A Hindu temple eventually converted to a Buddhist temple and surrounded by a massive 650 foot wide moat, Angkor Wat was named a UNESCO World Heritage Site and has become a symbol of Cambodia, appearing on the Cambodian flag.

Plitvice Lakes National Park- Croatia, Europe

The Plitvice National Park is the oldest park in Sourtheast Europe, and the largest in Croatia. The park (A UNESCO World Heritage Site) has 16 pristine lakes which are interconnected by stunning waterfalls (the largest standing 70 meters tall). The lakes are famous for their stunning colors, often changing from shades of teal, turquoise & deep blues to greys. The beautful lakes are set in dense woodland, home to deers, bears & rare species of birds.
Plitvice lakes National Park is heaven for nature lovers and hikers, but for people who don't want to explore the park on foot there's a boat & a electric train, which takes a set route around the park.
And its among the 20 most beautiful lakes in the world to 17th place, The park covers, an area of 33,000 hectares. And also its considered to be one of the most beautiful natural sights in Europe. Due to its natural beauty & significance, this system of 16 interlinked lakes and a largest forest complex around it were set aside as a national park in 1949. 

Plitvice National Park, Croatia, Southeast Europe