The world is blessed with natural resources for human consumption and enjoyment; the mystical rivers and caves, bountiful wildlife, precipitous mountains and great oceans. The best art is created by nature. And the greatest protégé of nature are his people, the creation of ancient and modern architecture are not just for display or amazement. Deeper meanings and function are accompanied in crafting magnificent work of art. Take a peek at some of the most important landmarks formed by nature and man. Let's unlock its mystery and if you're lucky to have time to visit, jot down important notes as well. Learning and travelling is a fun combination.

1. Uluru in the Northern Territory, Australia-- Uluru or famously called as Ayers Rock is sacred sandstone formation in the southern part of the Northern Territory in central Australia. It is listed as a UNESCO World Heritage Site. It's also the most noticeable natural landmarks of the country. Abundant springs, rock caves and ancient paintings can be seen around this important cornerstone. Ayers Rock is significant to the Pitjantjatjara Anangu, its inhabitants. Aṉangu people facilitate tours to enlighten guests about the local fauna, flora and the Aboriginal history of place. You can also enjoy the opulent view by helicopter tour.

2. Windmills at Kinderdijk, South Holland- Windmills are good-looking structures that are built not to add beauty to the area but act as a helpful machine for its people. The 19 Kinderdijk Windmills are erected in 1738 and 1740. It is one of the best-known Dutch tourist destinations and the biggest concentration of old windmills in the Netherlands. It is listed as UNESCO World Heritage.

3. Leaning Tower of Pisa, Paris- Another UNESCO World Heritage Site, the Leaning Tower is a freestanding bell tower known for its unintentional tilt. The creation of Tower of Pisa began in 1173 and was completed in the 14th century, 1399. It begun to slant during construction due to insufficient foundation, the ground is too soft on one side thus it can't perfectly support the weight of the tower. In a story from BBC on May 2008, engineers said that the Tower had been stabilized and calmed for the first time in its 800-year history. It stopped moving due to the continuous effort to strengthen its foundation. They said that it would be steady for at least 200 years. Guest can now book a tour and climb to the top of the tower and appreciate its history. But for safety reasons, children under eight years old are prohibited.

4. Niagara Falls at the border of Ontario (Canada) and New York (USA)- Niagara Falls is a collective name of three waterfalls American Falls, Horseshoe Falls and Bridal Veil Falls. Visitors all over the world are fascinated with this marvelous falls. According to History, twelve million tourists from all over the world visit Niagara Falls every summer. But it's not just a tourist attraction, it has a great impact on industry, some of the water is diverted to supply power for the United States and Canada, making it the largest source of electric power in the world.

5. Petra in Jordan- Petra is a well-known UNESCO World Heritage Site in the Middle East. Because of its rose-red appearance, Petra is also called "Rose City." Monuments, tunnels, diversion dams and sacred structures can be found in this mystical city. Occupied since prehistoric times, this Nabataean city was a significant crossroads between Arabia, Egypt and Syria-Phoenicia. It is situated between the Red Sea and the Dead Sea. Tourist will surely be captivated on the history of the place. Walk or ride a horse along the Siq entrance canyon and learn about the Royal Tombs.