The 871±2 Settlement Exhibition
Iceland welcomed its first permanent resident in the 9th century, when Ingólfur Arnarson landed on the shores of Reykjavík. Today, most physical traces of early Viking culture have vanished, so it was a big deal when, in 2001, a longhouse was discovered in the center of the capital. After careful excavation, it's been opened to visitors as the the 871±2 Settlement Exhibition.