A tiny replica of the iconic London landmark hides on the side of the steel structure.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

This 1,300-year-old marker is one of the finest and most complete early Christian crosses in Scotland.

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

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

After mysteriously refusing to surrender at the end of World War II this sunken submarine was only salvaged in a search for Nazi gold.

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

The dramatic remains of an abandoned farmhouse sit high on the edge of a remote hillside.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

A tiny, hidden alleyway dedicated to the father of meteorology.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

One fisherman has used his love of pebbles and shore to create a crazy garden of rocky art.

This 2,000-year-old tree inspired the nursery rhyme "Rock-a-bye Baby."

Despite having a dome made of papier-mâché this tiny observatory has survived for over a century.

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

The world's largest grapevine has produced a delicious harvest at Hampton Court Palace for almost 250 years.

Ancient human remains unearthed around the iconic monument.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

Hidden in plain sight, this creepy sculpture watches from above.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.