The Nintendo DSi is a dual-screen handheld game console released by Nintendo. It is the third iteration of the Nintendo DS, and its primary market rival is Sony's PlayStation Portable. Development of the DSi began in late 2006, and the handheld was first unveiled during a 2008 Nintendo conference in Tokyo. While the DSi's design is similar to that of the DS Lite, it features two digital cameras and also connects to an online store called the Nintendo DSi Shop. The DSi is approximately 12% shorter than the DS Lite when closed, but it is slightly wider and lighter. The DSi also has a larger RAM and faster CPU. All DS games are compatible with the DSi, except those that require the Game Boy Advance slot. Because of its absence, the DSi is not backward compatible with GBA Game Paks or with accessories that require the GBA slot, such as the DS Rumble Pak and the Guitar Hero: On Tour series guitar grip. The Nintendo DSi received generally positive reviews. Critics praised many of the console's changes to the DS Lite's aesthetics and functionality, but complained that it launched with insufficient exclusive software. A larger version of the DSi, the Nintendo DSi XL, was released in 2009. (Full article...)
The Pisa Baptistry of St. John is a religious building in Pisa, Italy. Constructed in 1152 to replace an older baptistry, it was completed in 1363, and is the second building, in chronological order, in the Piazza dei Miracoli, near the Duomo di Pisa Cathedral and the Leaning Tower of Pisa. The baptistry, with a height of 54.86 metres (180.0 ft) and a circumference of 107.24 metres (351.8 ft), was designed by Diotisalvi.
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