Taipei 101, Taipei (must see)

Taipei 101 is the tallest skyscraper in Taiwan. At 1,667-feet tall, it held the distinction of the world's tallest building from 2004 through 2010. It was surpassed by the Burj Khalifa in Dubai, though a number of taller buildings have been constructed since that time leaving Taipei 101 the world's 10th tallest skyscraper.

Construction of the building began in 1999 and was completed in 2004. The Taipei Financial Center Corporation was a conglomerate of several banks that joined to build the skyscraper. It was designed by architects C.Y. Lee and C.P. Wang in a Postmodern architectural style.

The 101 stories of Taipei 101 are primarily offices, though floors one through five are a popular shopping mall. There is also a gymnasium and a restaurant.

Visitors can utilize the indoor observation decks on floors 88 and 89 or the outdoor observation decks on 91 and 101. Both are open from 9 AM through 10 PM daily.

Tip:
If you're looking to take a picture of the exterior, try to hike the Elephant Mountain (Xiangshan) to get a better shot. The hike is free and you get some great city views. Tickets may be purchased on site in the shopping mall (5th floor) or in advance through the Observatory's website. If you choose the former and are not a Taiwanese citizen, show your passport to get a 10% discount off the ticket price.