The first privately owned air raid shelter in Britain, built after a horrifying night of Zeppelin bombings.

This two-towered gateway is all that remains of the unluckiest pier in the world.

This 16th-century house tells the city's history through old artifacts and quirky tales.

A library where thousands of books explain how to avoid another Great Recession.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

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

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

Home to the longest wooden escalators in the world.

A famous pilgrimage site that remains hidden in the midst of a city.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

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