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

A 17th-century church is nestled within the walls of a 15th-century ruin.

The remains of a small medieval chapel mark the legendary birthplace of the patron saint of Wales.

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

Though much of the castle was robbed of its stones, the underlying earthworks are among the best-preserved in England.

The "father of immunology" used this humble hut to offer the local people some of the world's first free vaccinations.

These ruins of Francis Bacon's once-magnificent manor are hidden in the English countryside.

This crumbling 14th century chapel became so unstable the roofing apparently collapsed during a wedding ceremony, narrowly missing the curate's head.

This English medieval castle is where King John died of dysentery.

A mysterious ruin shrouded in more folklore than fact.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

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

An abandoned quarrying village turned commune is now a hub for learning the Welsh language.

These medieval monastery ruins are surprisingly overlooked by most tourists.

This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

This 15th-century fortification was built to defend bunnies.

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

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

Now isolated, this church was once the center of a bustling village that succumbed to the Black Death.

This Victorian graveyard in Leeds is a macabre collection of beautiful tombs and memorials.

The abandoned fishing village was swept right into the sea.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

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

These morbid carvings remind churchgoers of the inevitability of death.