Italy is full of outdoor sightseeing such as walking around the city and shopping. If it rains, where should I go sightseeing?In this article, we will introduce you to places you can enjoy indoors, such as museums and cathedrals!A rainy trip to Italy is also a good thing because you can enjoy it carefully! 1. St. Peter's Cathedral / Vatican City St. Peter's Cathedral, one of the largest Christia..