"不错的建筑" 用英语可以说成 "a well-designed building" 或 "a handsome building"。

"Well-designed" 是形容词,意思是 "设计精良的"。

"Handsome" 是形容词,意思是 "美观的"。

下面是一些例句:

The new museum is a well-designed building with plenty of natural pght and interesting exhibits.
The old castle is a handsome building with beautiful gardens and stunning views.

希望这些信息对你有帮助!