Here is an image of a local Bluebell Wood. Although Bluebells are naturalised in other parts of the world, they are actually native to Western Europe, and over half of the world's population are found in the UK.
Bluebells are a common indicator species for ancient woodlands, so bluebell woods can date back at least 1600 years.
It's a small bridge with a 'twist'. The date stone says 1778, but date stones can be misleading & will often refer to repairs.
Legend says that witches would not make a crossing over water if they could not see to the other side, so the 'twist' is to exclude witches & evil spirits from crossing either way.
The 'twist' feature in the bridge and its purpose suggest that the bridge is perhaps older than 1778.
The Fortingall Yew stands in the churchyard of Fortingall Church near the east end of the attractive village of Fortingall in Perthshire. It is believed to be 5,000 years old and is quite possibly the oldest living thing on Earth. More pics and info: https://www.undiscoveredscotland.co.uk/fortingall/yew/index.html
I found this is near Dunvegan Castle on the Isle of Skye. I'm not sure what they were in their original form, and I'm not sure what they are now, but I rather like both.