There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

The fake World Cup prize was secretly created after the first one was stolen in 1966.

The secret wartime bunker built on the platforms of an abandoned Tube station.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

An abandoned canal route lies hidden under the streets of Manchester.

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

This quaint funicular has been ferrying people up and down an English valley since the Victorian era.

A seaside town with no sea in sight.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

The world's shortest funicular ferries beachgoers a whopping 128 feet from clifftop to shore.

A Victorian Fort built into the chalky cliffs that overlook the English Channel.

A repurposed railway tunnel with otherworldly acoustic characteristics.

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

The commemorative stone column conceals a secret laboratory.

The oldest candy store in the world has been selling traditional sweets since 1827.

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

This remarkable building has a lot to offer, even if you're not placing a bid.

A beautiful Kentish country intersection hosts a tasty little photo spot.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

One person's lost luggage is another person's treasure.