What are the suggestions for the development of tourist attractions in "Roman Holiday"?

It is recommended that Castel Sant’Angelo increase protective measures.

In addition to a large collection of sculptures, murals and furniture from the Pope's residence, Castel Sant'Angelo also houses precious ancient weapons. Castel Sant'Angelo has several bridges leading to the old city, the most famous of which is the Ponte Sant'Angelo in front of Castel Sant'Angelo, known as "the most beautiful bridge on the Tiber River". When walking through the Ponte Sant'Angelo, you might as well take a closer look at the shape of the bridge and the various exquisite carvings on it. This bridge designed by the famous Italian sculptor Bernini can be said to be a masterpiece of Baroque decorative art. The movies "Roman Holiday" and "Angels and Demons" were filmed here.