The United States Capitol dominates the eastern end of the National Mall on Capitol Hill — its dome, completed during the Civil War, is hard to miss. The Capitol is the seat of the United States Congress, and it has been a center of American politics since 1800. Inside, the Visitor Center walks you through its history, shows off its art collection, and explains how the legislative branch works. Free guided tours are available, but booking ahead is a good idea — lines can get long, especially in peak season.

The Basilica of the National Shrine of the Immaculate Conception is the largest Roman Catholic church in the U.S., with a striking interior of mosaics, chapels, and domes. Free guided tours are available and give a good sense of its history and architecture.

The southernmost city of Crete and the fourth largest one in the country, Ierapetra combines the infrastructure of a tourist resort with easy access to pristine beaches and beautiful countryside. A popular tourist destination within easy reach from here is the unspoilt Chrysi Island with its golden beach.

At the Museum St. Anton am Arlberg you can find out more about the history of alpine skiing and the Arlberg region. This is an interesting and multi-visional museum.