Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

The impeccably spiced roast pork buns at this bakery are worth the wait.

Despite dreams of constructing this fairytale mansion, Albert Gotthard Nestor Cedergren never saw its completion.

This rare aquatic phenomenon is one of the more accessible tidal bores in Morecambe Bay.

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

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.

A unique book shop with a collection of rare tomes and a nostalgia museum.

This "living building" on Georgia Tech's campus is home to a blueberry orchard, honeybees, and more than 900 solar panels.

A carved bench marks the Scottish cave that inspired the classic adventure novel "Treasure Island."

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

This ethereal, rainforest-like gorge is home to waterfalls, quaint bridges, and fairy folk.

At high tide this strange footbridge appears to have no purpose whatsoever.

The artwork is tucked within a cave on a tiny Scottish island only accessible at low tide.

This enchanting hill is home to fairy lore and a sinister local mystery.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

A regular looking rock with an unbelievable history.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

This series of Scottish caves has no clear purpose other than baffling historians.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.