At its core is Manhattan, a densely populated borough that’s among the world’s major commercial, financial and cultural centers. Its iconic sites include skyscrapers such as the Empire State Building and sprawling Central Park.
Officially the City and County of San Francisco, is a commercial, financial, and cultural center in Northern California. San Francisco is the fourth most populous city in the U.S. state of California.
Pennsylvania’s largest city, is notable for its rich history, on display at the Liberty Bell, Independence Hall (where the Declaration of Independence and Constitution were signed) and other American Revolutionary sites.