This open-air heritage museum illuminates centuries of historic English life from a West Sussex village.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

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

These planks were originally installed to hold the dead.

A beautiful medieval bridge allegedly constructed by the Devil.

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

The United Kingdom's smallest working cathedral also serves as a quaint bed and breakfast.

A spectacular disused railway viaduct in a beautiful countryside nature reserve.

These barriers stand as stark reminders of Northern Ireland's troubled past.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

The last Victorian market in Belfast.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

This historic franken-chapel is the oldest wooden church in the world, at least part of it.

The intended purpose of this unfinished Elizabethan building remains a mystery.

Recently restored menagerie of Victorian-era beasts.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

This amazing 15th-century mural remained hidden in plain sight for centuries.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Its collection includes a broad array of social, geographic, graphic design, and political history.

An architectural oddity hides in plain sight on this iconic London bridge.

This Scottish museum is the only one in the world to focus not on one religion but all of them.