Given below is a set of four sentences, and when properly sequenced, they form a coherent paragraph. Arrange the sentences in the correct sequence.

A. At the centre of the city, a magnificent castle stood adorned with ancient sculptures.

B. As I strolled along the cobblestone streets, I was captivated by the city’s old-world charm.

C. I landed in Vienna on a chilly winter morning, my breath fogging up in the cold air.

D. This castle was a treasure of art and history, attracting numerous visitors from around the world.