Stonehenge is not one of the original Seven Wonders of the Ancient World, nor did it make the final list of the "New 7 Wonders of the World" announced in 2007, despite being one of the 21 finalists alongside the Eiffel Tower and the Statue of Liberty. However, it is a designated UNESCO World Heritage Site (added in 1986) and is frequently included in informal lists of the "Wonders of the Medieval World" or "Wonders of the Forgotten World." Its status as a "wonder" is more of a cultural and historical descriptor than an official title. Located in Wiltshire, England, the prehistoric monument consists of a ring of standing stones, each around 13 feet high and weighing 25 tons. Its construction, dating back as far as 3000 BC, continues to baffle researchers due to the immense effort required to transport and align the stones without modern technology, cementing its reputation as a global marvel of human ingenuity.