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

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

In the 18th century, the Earl of Buchan mapped the universe on this stone pillar.

This unassuming stone is possibly the oldest Scottish memorial to the 13th-century knight.

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

A spring purported to have healing properties lies just outside Scotland's capital.

This king penguin is a knighted brigadier of the Norwegian Army.

These characters from a Robert Louis Stevenson novel stand in an unlikely place.

An ancient stone with mysterious origins stands in a residential neighborhood.

This exhibit showcases the literary work of soldiers who suffered "shell shock" during World War I.

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

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

A pair of stones embedded in an Edinburgh street memorialize one of the city's last public hangings.

This ordinary-looking rock may have played an important role in a 16th-century Scottish battle.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

This modern work of art was a refreshing addition to one of the oldest theatres in the city.

A free public golf course hides in plain sight in the heart of Scotland’s capital.

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

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

A building-sized painting of the renowned 19th-century American abolitionist.

The lasting remains of a bygone era of open-air meat markets.

A plaque commemorates a Victorian scientist's monumental discovery about waves.

Small museum dedicated to the founder of electromagnetic theory.

The remnants of a facade from a 19th-century market stall emporium.