Þingvellir National Park was founded by law in 1930. The Act states that “Þingvellir at Öxará shall be a protected national shrine for all Icelanders.” In 2004 Þingvellir was added to the UNESCO World Heritage List. During the Old Commonwealth era (930-1262), The Lögretta (Law Council) was responsible for law making and the resolution of legal disputes. Laws were recited from memory every year to the assembly from the Lögberg (Law Rock)
The little farmhouse in the bottom of the rift, Þingvallabær was built for the 1000th anniversary of the Alþing in 1930 by state architect Guðjón Samúelsson. It’s now used as the park warden’s office and prime minister’s summer house.