These are four famous tourist attractions around the world!

The Forbidden City

The Forbidden City in Beijing, China, was completed in 1420 during the early Ming Dynasty. It is the largest ancient palatial(宫殿似的)building in the world and it's open to tourists to allow them to have a look at ancient Chinese architecture.

Niagara Falls State Park

When you arrive at Niagara Falls State Park, you'll explore the Cave of the Winds to have an up-close look at the falls. The Cave of the Winds is a self-guided tour, which means you can spend as much time as you would like. There is no need to make a reservation. The Cave of the Winds closes during winter, so make sure it's open before visiting.

The Little Mermaid

The little Mermaid is a statue in Copenhagen, Denmark. It sits on a rock in the harbor. It was inspired by a performance of a ballet based on the fairy tale The Little Mermaid by Hans Christian Andersen. And there are many tourists taking photos with the Little Mermaid every year. 

The Taj Mahal

As one of the Seven Wonders of the world, the Taj Mahal is the jewel of India. It is considered as the finest example of Mughal architecture, a mix of Indian, Persian and Islamic styles.