This cheese shop also houses a museum devoted to Dutch dairy.

A public urinal so pretty, it was declared a national monument.

A beautifully eclectic mix of architectural styles.

The history and future of cannabis.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Brass bricks outline the locations of Edinburgh's lost, lively market stalls.

At just 51 feet and 10 inches long, it's the shortest street in England.

The building where Mary, Queen of Scots was said to have bathed in white wine.

A celebrated bandstand at the center of what was once the worst slum in London.

This Norman castle was once the site of a Victorian-era prison, and now exists as a luxury hotel.

In the depths of Glasgow Cathedral's crypt, one pillar stands out from all others.

Belfast's namesake river still winds below the city center, hidden from sight.

You will not be able to miss this building.

The pockmarks across the building's facade are remnants of the Blitz.

A 1950s beatnik coffee house, turned 60s counterculture hotspot, turned modern music venue.

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

The bronze uniforms commemorate the vital role of women during World War II.

These barriers stand as stark reminders of Northern Ireland's troubled past.

Be on the lookout for the symbolic insect all over the city.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

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

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

This ancient Egyptian obelisk still bears the wounds of World War I.