Philadelphia , General info:
9/10

Philadelphia is the largest city in Pennsylvania and the sixth most populous city in the United States. It is the 5th largest metropolitan area by population in the United States, and the fourth largest consumer media market as ranked by the Neilsen Media Research Co. Tourists and media often informally call the city "Philly." It is the county seat of Philadelphia County, with which it is coterminous.

Philadelphia , Cheap stuff:
9/10

If you are near center city, a little known attraction is the observatory deck atop city hall. The observatory deck is directly under the William Penn stautue. You can actually look up through an open window at him and really get a sense of how big he is. I have taken people that grew up in Philly there and they never knew it existed. It is free and the hours are Mon.-Fri. from 9:30 am-4:30 pm with tours occuring every 15 minutes (no weekends). So the hours are a little funny but it is WELL worth it if your schedule permits it.

Also since you will be in the area, another small known attraction is the Wanamaker Organ in Lord and Taylor. Lord and Taylor is kaddy corner across the street from city hall on the southeast corner. The organ is a massive 30,000-pipe organ which has been said to be the largest in the world. They have daily (FREE!) shows at noon and 5pm (7pm on Wednesday). There is a nice Café Americanstyle that overlooks the scene from a third floor terrace.

Philadelphia , Different stuff:
10/10

African American Museum in Philadelphia, Philadelphia Museum of Art, The Free Library of Philadelphia, ...

Philadelphia , Don't miss:
9/10

Warmdaddy's, Zanzibar Blue, Khyber, Electric Factory, Tin Angel

Philadelphia , Food:
10/10

There are 10 things you should do in Philadelphia:

1. Eat a Philly cheesesteak

2. See the Liberty Bell and Independence Hall

3. Run, jog, or walk up the Art Museum steps

4. Experience a Big 5 basketball game at the legendary Palestra

5. Devour an authentic Italian meal in South Philly

6. Drink a local microbrew

7. Visit Penn's Landing and walk along the Delaware River

8. Try a soft pretzel and more at the Reading Terminal Market

9. Stroll down funky South Street with stops for steaks, pizza, and cheese fries

10. Have a cocktail out on Rittenhouse Square

Philadelphia , Hotels:
9/10

Loews Philadelphia Hotel, Four Seasons Hotel Philadelphia, Courtyard Philadelphia Downtown, Alexander Inn, Sofitel Philadelphia

Philadelphia , Safety:
9/10

Center City Philadelphia is a friendly and diverse place. Most people will gladly point you in the right direction, even if they only work in the city. Center City is generally bordered by the Delaware River on the East, Spring Garden Street on the North, the Schuylkill (Skoo - cul) River on the West and South Street on the South. If you stay within those boundaries, you're pretty safe.

Xi An , General info:
5/10

The Capital of Shanxi(Qin) province. The city has more than 2600 years history, use to be the capital of Qin Dynasty,Han Dynasty,Tang Dynasty and so on. Since The emperor of Han Wu Di developed the Silk Road, Xi An became the center of the ancient world.

Xi An , Cheap stuff:
1/10

curio

Xi An , Different stuff:
1/10

many curio

Xi An , Don't miss:
2/10

The "terracotta warriors and horses" of Qin Shi Huang

The Castle and the Wall(Ming Dynasty)

Tombs of many great emperor

Xi An , Food:
1/10

lamb soup with Nang

Xi An , Safety:
5/10

Chinese cities are much safer than the westerners imagination. At least much better than the cities with same size in the USA. But beware of the bilkers who sell the counterfeit products.