These steps offer a breathtaking view of one of Europe's most besieged fortresses.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

A sweet symbol marks the place where torturous executions were once carried out.

A scattered trail of street art adds a pop of color to the city's stark structures.

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

The heads of two giant mythological water horses honor Scotland's horselord past.

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

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

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

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

This Scottish manor house is a lush relic from the life of a literary great.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

D.C. once had its own tiny rival to the New York Stock Exchange.

Look closely and you’ll notice that the color changes a third of the way up the tower.

An overlooked memorial honoring the local Washington residents who died in World War I.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Decades before the scandal, this staircase on the river was a literal "water gate."

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.