A network of concealed passageways lies within a busy London Underground station.

This isolated Japanese mountain village untouched by time showcases unique and stunning traditional architecture.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

A former bastion of Rajput chivalry, this massive hill fort is the site of legend and tragedy.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

This modern labyrinth lies in the shadow of a ruined medieval castle.

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

This vintage "streetcar boat" lay at the bottom of Lake Minnetonka until the 1980s.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.