A museum and tribute to a brave profession.

The unusual burial monument of Arizona's first governor.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

Glasgow's memorial to the International Brigade volunteers from Great Britain who fought and died in the Spanish Civil War.

These ruins have been linked to a sherbet factory that exploded, but the story may be entirely fictional.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

Inside this art museum resides one of Glasgow's most famous musical instruments.

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

The artwork is a community's ode to the "father of Irish tourism."

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

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

Northern Ireland's Brobdingnagian stepping stones.

The oldest house in Glasgow is now a museum dedicated to the city's medieval history.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

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

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

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

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

Go surfing on this urban wave, "hacked" by local surfers.