Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

This ordinary-looking mailbox has a rather explosive history.

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

The Scottish Reformation leader's grave was paved over and is now a parking lot.

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

The colorful stairs are made with marble from the world's major quarries.

Nestled among the living residents is the final resting place of an apothecary plague victim.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

These trenches were used to train the Scottish military for life on the frontlines of World War I.

A remnant of the Roman army's presence on the coast of Scotland.

360° views of the city plus five floors of optical illusions and hands-on science.

A former telephone box found new life as a photo booth and charity fundraiser.

This grave marks one of few bodies retrieved from the disastrous Franklin Arctic expedition.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

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

One of Edinburgh's most popular works of street art is located well off the beaten path.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

A rare memorial paying homage to an altruistic woman from the 19th-century.

The man who helped establish the first rules of golf.

These plaques located in a court preserve a small piece of Edinburgh's history.