A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

These abandoned coal mine towers near Sherwood Forest might soon boast the U.K.’s longest zip-line.

These quintessentially English stepping stones were built for Victorian tourists.

This stone throne invites adventurers to observe breathtaking views of the Peak District.

This pub can leave even the sober feeling slightly unsteady.

Artists have long been drawn to these atmospheric 12th-century ruins.

Britain's oldest and biggest hole in the ground.

This amazing trail among the many waterfalls around Ingleton has been enchanting visitors since 1885.

One of the few surviving street funiculars in the world.

Legend has it the famous Robin Hood would attend mass at this 12th-century Cistercian abbey in Sherwood Forrest.

A sea cave with a waterfall and Viking past

It's believed King John of England stayed at this 13th-century castle before riding off to sign the Magna Carta.

The alleged birthplace of Lady Jane Grey, who was executed at age 16 for claiming the throne of England.

This giant wooden treehouse within a sprawling garden has its own eatery.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

These semi-natural waterfalls hint at the park's Victorian-era industrial past.

This ruin in a suburban park may be the place where Shakespeare's "A Midsummer Night's Dream" was first performed.

A miniature village mimics the surrounding buildings so well it includes itself.

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

What was once England's second-richest abbey is now a haunting ruin.

These Roman ruins in England’s Lake District are 2,000 years old, but look pretty good for their age.

This ruined 15th-century hermitage is steeped in myth and mystery.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.