Northern Ireland's Brobdingnagian stepping stones.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

This hilarious English intersection is an automotive whirlpool.

Hundreds of trees made from glass bottles make up this forest on Route 66.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

There aren't too many operational funiculars around, but Pittsburgh has two!

A domino effect created with Britain’s iconic telephone boxes.