This castle has existed for centuries.

The 20th century was marked by significant advancements in science and technology.

His existence enriches my life.

You can feel his presence.

This is an important invention of the 20th century.

It's surprising that he can run so fast.

What? I couldn't catch what you said.

Could you bring me that, whatchamacallit?

We are planning to visit the castle this weekend.

This old castle is not used anymore.