An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

The arch that celebrated the completion of the Lincoln and Victory highways.

This 18-foot-tall steel lotus is a meditation on ecological crisis that originally appeared at Burning Man.

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

This city square dates back to the Scottish Enlightenment and was home to some of Scotland's brightest minds.

This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

Located more than 600 feet beneath sea level, this tunnel boasts the world's first undersea roundabout.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.