A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

The house where the writer spent his formative years.

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

The world-record holder for the longest bridge stretching continuously over water.

A fascinating aviation museum where you can chat with the veterans who once flew the aircraft on display.

This mundane post marks the old location of the city's main postal hub.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

This was once a hall in which a 16th-century royal banquet was hosted by King James VI of Scotland.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

The bones of two medieval royal lions were discovered at the historic fortress.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

This medieval manor house was equipped with secret compartments for hiding priests.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

The walls and streets of the ancient city are peppered with penises.

This magical-looking island is notorious for the misfortunes suffered by its owners.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

This ruined 15th-century hermitage is steeped in myth and mystery.