If there’s a particular group of people you wish to honor, you could call the collection a pantheon. In ancient Greece and Rome, a pantheon was a temple dedicated to all of the gods. The Pantheon building in Rome is a former Roman temple, and it’s now a Catholic church. Built in the second century, it’s one of the best-preserved examples of Roman architecture. Nearly 2,000 years after it was built, it’s still the world’s largest unreinforced concrete dome.