That sound is very beautiful.

The sound was so quiet that I could hardly hear it.

The timbre of his voice is very beautiful.

The pyramids of Egypt are a wonder of ancient architecture.

He looked up at the high tower.

The five-ringed pagoda is one of the traditional buildings in Japan.

He works in the air traffic control tower.

There is a large cooling tower in this factory.

This advertising tower has become a landmark of the city.

He works at the control tower of the airport.