San Francisco's newly reopened hands-on science museum.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The world's first ice hotel is still one of the most elaborate and beautiful.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Berlin's old airport.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

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

An unusual and powerful memorial in which earthquake victims are remembered by empty white chairs.

The platform atop this verdant volcano was built with the help of a royal elephant.

Largest Kauri tree in New Zealand.

The premier place to experience the Victorian imagining of the steam-powered future.

This strange geological landscape erupts with sudden bursts of water.

Some of the clearest water anywhere in the world.

A gigantic sculpture garden is packed with innovative oddities.