Rare collection of medieval books under lock and key.

A replica of one of the most complete mammoth skeletons discovered in England.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A Neolithic burial tomb connected with a colorful array of legends.

The enormous earthwork sculpture honors the ponies that lived and worked in the old colliery.

This lonely cast-iron structure is the only wave-washed lighthouse of its kind left in all of Britain.

A section of a historic wooden trestle viaduct is preserved next to the railway line it once carried.

Britain’s longest ancient monument, this great 8th century earthwork was built to mark the boundary between what would become England and Wales.

A memorial to the British politician who spearheaded the National Health Service.

A modest stone circle in North Wales.

Britain’s highest medieval monastery is a remote ruin nestled at the head of a valley 1,240 feet above the sea.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

Three bridges straddle a stream, one stacked upon the other.

A Welsh sheep farm provides daily (non-sheep) meals to red kites, producing dazzling displays of aerial acrobatics.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

Legend says this rock was once a chopping block for public executions.

This enchanting hill is home to fairy lore and a sinister local mystery.

Described by William Wordsworth as a "World of Wonder."

This Neolithic stone circle is the most complete of its kind in Scotland.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

Cascading waterfalls mark the gateway to the ancient burial place of Clan Macnab.