IWSEC 2015 will be held at Todaiji Cultural Center in Nara, Japan.
Nara was the capital of Japan in the 8th century. UNESCO listed the historic monuments of ancient Nara as World Heritage in 1998, which encompasses five Buddhist temples, one Shinto shrine, one Palace and one primeval forest. In particular, famous tourist attractions such as Todaiji Temple, Kofukuji Temple and Kasuga Shrine are within walking distance from the venue which is located in the center of Nara National Park.
Todaiji Cultural Center (Official Web Page, written in only Japanese).
Address: 100 Suimon-cho, Nara, Nara, 630-8208, Japan
Special Exhibition Celebrating the 120th Anniversary of the Nara National Museum will be held from July 18th to September 23, 2015
From July 18th to September 27th, various historical buildings in Nara are lit up at night.
Unfortunately, official web site is only written in Japanese. But we can see english-written report in 2014 on the other web site.