Exploring nature is fun. But there are lots of impressive man made structures to explore, too. Some have been destroyed, but some can still be found today.
The Seven Wonders of the Ancient World are epic, man made structures. They were all built over 2,000 years ago. They consisted of statues and buildings.
All but one have been destroyed. The only wonder still standing is the Great Pyramid of Giza. It is also the oldest. How it was built is still a mystery. We do not know about construction methods 4,500 years ago.
Colossus of Rhodes was built to honor the sun-god Helios. It was a celebration of a war victory. It was a symbol for how strong they were. The feet were carved in stone, then the rest of the body was built.
The statue stood for 54 years until an earthquake took it down. The broken statue stayed on the floor for 800 years. It was never rebuilt.
The Temple of Artemis was a place of worship and a marketplace. It was built around 2,500 years ago to worship the Greek goddess of hunting and nature. It stood for around 600 years before it was destroyed by a flood.
But these are not the only wonders of the world. There are also seven recent wonders. They are called the New Seven Wonders of the World.
In Brazil, a statue of Jesus Christ looks over one of its biggest cities. It is called Christ the Redeemer. It was built in 1931. People say he protects them.
The Great Wall of China is the longest manmade structure in the world. It is 4,000 miles (6,437.38 km) long. It took 2,100 years to build. It was to protect the Chinese from others.
Machu Picchu is an isolated structure in the mountains of Peru. It was built in the 15th century by the Inca people. It is thought to have been a palace for a ruler. Around 750 people lived there.
For years, only locals knew about the structure. It was rediscovered in 1911. Now, people travel from all over the world to visit this amazing place.
These new and old structures teach us a lot. They show us what humans can do. They show us that nothing lasts forever.