Stonehenge was built on the Salisbury Plain over many years, from the Neolithic era until the Bronze Age. The earliest part of the structure was just the outer bank and ditch, while the stones came later.
Entrance to the National Trust-managed site is via timed tickets granting 30 minutes of access. Visitors can view the stones up close and shuttle between observation areas. Travelers must book special Stonehenge tours outside regular opening hours to visit the Inner Circle and walk among the stones. Day tours from London often also stop at nearby attractions such as Oxford, Windsor Castle, Bath, Stratford-Upon-Avon, or the Cotswolds.