2016年02月28日高清壁纸桌面美图《冰岛，辛格韦德利国家公园的火山口 (© Ragnar Th Sigurdsson/Alamy)》无水印免费下载。

北美板块和亚欧板块分裂时，地壳运动促使湖泊、河流、山川等自然美景的形成。古老的火山口至今仍在活跃着，安静的火山口内部，熔岩不停运动着，酝酿着。Þingvellir National Park is such a part of Iceland’s identity, it’s often simply called "Þingvellir" (transliterated as "Thingvellir" for those of us not fluent in Icelandic). In 930 CE, Iceland’s first democratic parliament, the Alþingi, convened here. Þingvellir, which means “Parliament Plain,” was used for this function for more than 800 years. Today, as a national park, Þingvellir stands as a protected national shrine. The volcanic terrain, dotted with craters like these, supports a birch forest landscape that is home to 50 bird species, and is a popular stop for many migratory birds as well.