700 year old Iranian Home. Allegedly, these homes in Iran, carved out of solid rock, were built on the order of 700 years ago and are still inhabited by people who have given them modern touches (you know, the little things like and electricity)
Wisconsin Ice Age Trail: Wisconsin' scarier landscape (think lakes, river valleys, rolling hills, and ridges) was formed years ago with the Ice Age. See the evidence of this part of Wisconsin's history on the mile Ice Age National Scenic Trail.
Fingal’s Cave, Inner Hebrides, Scotland. "Fingal's Cave is a sea cave on the uninhabited island of Staffa, in the Inner Hebrides of Scotland, part of a National Nature Reserve owned by the National Trust for Scotland" via Wikipedia.