This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

The metal frame is all that's left of a wicker sculpture which once towered over the M5 motorway.

Huge winged monument in the United Kingdom.

An architectural oddity hides in plain sight on this iconic London bridge.

Famously misunderstood wonder of the ancient world

Several land speed world records were shattered at this Welsh beach.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

Go deep down into the earth to experience the world of Welsh coal miners.

The largest of only eight working transporter bridges left in the world.

The castle still holds traces of the abandoned Roman fort it was built atop.

Recently restored menagerie of Victorian-era beasts.

Stroll through Welsh history in a village of reconstructed structures.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

It was once nicknamed "the most bombed hotel in Europe."

A museum marks and documents the site of the Titanic's launch.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

Northern Ireland's Brobdingnagian stepping stones.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

An Irish peat mine has become a stunning sculpture park.