A sweet symbol marks the place where torturous executions were once carried out.

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

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

Copenhagen's celebrated theme park and gardens.

The oldest working mechanical clock in the world.

Famously misunderstood wonder of the ancient world

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Largest collection of mounted dinosaur specimens in the world.

Largest man-made excavation on earth!

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Visitors to this library are in for a real-world education in modernist architecture.