The Smithsonian National Postal Museum is devoted to the colorful and engaging history of the nation’s mail service and showcases the largest and most comprehensive collection of stamps and philatelic material in the world
The Basilica of the National Shrine of the Immaculate Conception is the largest Roman Catholic church in the United States and North America, and is one of the ten largest churches in the world
Located on the National Mall within view of the US Capitol and the Washington Monument, the Hirshhorn Museum and Sculpture Garden welcomes more than 750,000 visitors a year, making it one of the most visited art museums in the country
