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Flagstones also has connections to other significant sites, including Llandygái 'Henge' A in Gwynedd, Wales, and artefacts and burial practices implied even locations in Ireland.

It includes monuments and sites that can be accessed, ranging from the ancient Avebury henge and stone circles in Wiltshire and the Sutton Hoo burial site in Suffolk to the world's first purpose-built motor racing circuit in Surrey.

Wandering through the site, visitors will see incredible artwork, including huge pieces by Mutoid Waste - you might remember their Car Henge display from Glastonbury last year.

The best-known urban “henge” other than New York’s is Chicagohenge, which happens during the spring and fall equinox.

Similar "henge" phenomena also occur in other cities with large amounts of skyscrapers and long straight streets - such as Chicago, Montreal and Toronto.