His voice had the power to calm the entire room.

The topography of this area is very complex.

It's difficult to find the Big Dipper.

This park is a place of tranquility.

He took a deep breath to simmer himself down.

This park is known for its tranquility.

This lake is very tranquil, it calms the mind.

This park is always tranquil, making it the perfect place to relax.

She demonstrated her intellect to solve the problem.

His reign brought peace and prosperity.