A new sculpture calls attention to climate change in the centuries-old city it threatens.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Single runway interrupted by a busy road that cuts across its middle.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

Scotland still bears an enormous scar of its Roman past.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Some cheeky plantings brighten an old slipway on Scotland's Firth of Forth.

Stay in the one time home to one of Scotland's most notorious gentleman's sex clubs.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

Soviet intelligence had a keen interest in the Cold War linguistic school at this old Scottish airfield.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

A trio of giant megalithic stones in the middle of a golf course.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

A small Scottish town's larger-than-life tribute to the celebrated accordion player.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

In 1396, two Scottish clans that had been violently feuding for centuries finally faced off in a bloody battle in this park.

The Guinness Record holder for largest hedge in the world is a verdant Scottish bulwark.

This Birnam-based garden honors the legacy of 19th-century children’s book author Beatrix Potter.

A close look reveals that the Scottish monument is just slightly off-kilter.