PHILADELPHIA - Boat House Row in Philadelphia row is home to 15 historic boathouses, including rowing and social clubs. These structures were built before the Industrial Revolution and have been preserved for their historic value. If you visit Boathouse Row, you'll get a chance to see how life was lived in the early years of the river. It's a great way to learn about the history of rowing, and you'll also get to see some great watercraft racing shells.

PENNSYLVANIA - There are many reasons to explore the ruins of Concrete City, one of the earliest examples of International Style architecture in the United States. The edifice was built in 1911 for select employees of the Delaware, Lackawanna, and Western Railroad coal division. Fortunately, it is no longer a working coal mine. Today, it is home to several historic buildings.

PHILADELPHIA - The Liberty Bell is a historical icon that is an important part of Philadelphia's rich history. Explore the bell on a free, first-come, first-serve basis. Visit the Liberty Bell Center across from Independence Hall, where the bell hangs today. It is open to the public daily from 9 a.m. to 5 p.m. You may encounter a line of people during these times, so arrive early to ensure a good spot to view the bell.

PHILADELPHIA - The Academy of Music in Philadelphia opened its doors on January 26, 1857, but it had already been in operation for 18 years.