A mysterious, weather-beaten bus lies on the coast of Harris, enticing the curious to investigate.

Some of England's last cave dwellers lived and worked within this huge cave.

This former military airfield's claim to fame came from a lucky accident during the Second World War.

The ruins of the second of three churches dedicated to the saint in a touristic Scottish town.

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

This incredible viaduct was part of the Victorian railway boom and helped the Midland Railway navigate tough terrain.

The ruins of a 15th-century church once home to priests who prayed for a single family's salvation.

These precariously placed ruins harken back to a 13th-century castle.

Vast fan-shaped British cemetery honouring American servicemen lost in World War II.

A preserved 18th century steel factory.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

The site of the most dived wreck in the UK.

Now a memorial to merchant sailors and Titanic victims, this medieval church was destroyed by bombing raids in 1940.

The half-finished remains of what would have been Scotland’s biggest piece of landscape art.

A 2,000-ton rock resting in a state of a delicate balance.

The oldest of the three remaining bridges in England with buildings on top of them.

In the quiet village of Fulmodeston, the ruins of a medieval church remain hidden among vines and foliage.

This trail follows unique stone railroad tracks and a historic waterway to the south coast of Devon.

These rusting, skeletal structures are monolithic monuments to Glasgow's industrial past

The UK's oldest theme park slowly slips away.

This British museum hopes to take the taboo out of poo.

Once a palace for the Archbishop of York, these 15th-century ruins now serve as a haunt for history buffs.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.