Boiler & Furnace Cleaners Inc

The National Building Museum presents several fascinating exhibits that cover architecture, construction and engineering. And while several of the country's most famous structures are spotlighted, the actual museum building itself is an exhibit in its own right. This amazing venue features massive columns, a picturesque fountain and a highly decorated ceiling that reaches 15 stories upward. Several interactive exhibits are part of the many highlights, including temporary exhibits that focus on the development of ghettos, roads, factories, parks and more. If it was built, the chances are its story is within the walls of this incredible museum.

The National Christmas Tree Lighting Ceremony is a Christmas tradition that every American looks forward to. All eyes are on the President and First Lady as they light the tree, followed by the President's holiday wishes to the crowd and the millions more watching the event on television. There's a band playing holiday favorites, and in addition to the large tree that is the focal point of the festival, there are also several smaller trees that represent our states and territories. The trees stay lit and this celebration begins a month-long schedule of various entertainment that helps to keep the Christmas spirit high.

Want to know where all the money comes from? Then get set to find out on one of Washington, DC's most popular tours when you visit the Bureau of Engraving and Printing. Some of the exhibits include bills that are no longer in circulation, counterfeit money and a staggering $100,000 bill, along with a presentation of how money is produced and printed. In keeping with fiscal responsibility, the tour is actually free but during peak summer months, admission tickets are given out on a first-come, first-served basis.

Take the family on an incredible safari the next time you're in Washington, DC. How? By visiting the National Zoological Park that's part of the Smithsonian Institution. The kids will marvel at more than 5,000 animals that are presented in their natural habitats. The zoo sprawls out over 163 acres and includes informative displays and attractions placed throughout the grounds. Don't forget to see two of the zoo's most popular residents, Mei Xang and Tian Tian, the two giant pandas that are on loan from the China Wildlife Conservation Association. The kids will absolutely love it!