Liwan district is my favorite part of old Guangzhou, but for modern view I head to Huacheng Square and the long park that runs North to South between Zhujiang New Town and Liede. Luckily my office is right next to the park!
The park is beautiful during the day and magnificent after dark when all the lights are lit!
Huacheng Square is a must place to visit for anyone traveling or living in Guangzhou. You can find the Opera House, new library and Guangdong Museum at the South part of the square. With a beautiful view of the Canton Tower.
On the photo above, taken from the Four Seasons Hotel at 72nd floor, you can see the library on the left, Guangdong Museum is the black building and the Liede bridge n the background. I cross that bridge everyday to work.
The Guangdong Museum has a great exhibition on the history and culture of the province.
In the evening there are water, light and music shows, but they can be very crowded so be careful.
All in all, Huacheng Square is a great place to visit and take visitors as well.