A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

The silly symbol for an underground protest group is now scattered around the city.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

Museum dedicated to "the man who moved the Earth."

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Real bones which are said to have belonged to a Polish dragon.

An underground city of salt.

High winds can make this one scary landing.

Highly spherical boulders on the shores of New Zealand.

One of the world's steepest streets seems to have houses sliding down it.

Running since 1864, this clock has yet to be wound, one of the longest-running science experiments known.

One of New Zealand’s few castles boasts beautiful gardens, grand architecture, and a history filled with family drama.

Known for the tunnel that leads visitors to the water.

A perfect turquoise lake colored with glacier dust.

A giant doughnut was given to the small New Zealand town of Springfield to promote "The Simpsons Movie."

The "punniest place on Earth” has nearly as many bull-themed puns as it does people.

This sheep farm has been forever transformed since being built for “The Hobbit” film series.

Some of the clearest water anywhere in the world.

Anyone wanting to know what a dwarven mine sounds like need only visit the tunnels of this New Zealand artillery compound.

When life gave this firefighter a forest fire, he made a rough-hewn sculpture park using a chainsaw.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.