The vertigo-challenging Eureka Skydeck 88 is the highest public vantage point in the Southern Hemisphere. On the 88th floor of the Eureka Tower, a viewing deck gives a 360-degree panorama of the city from 285 m (935 ft.) above the ground. But there’s more adrenaline-pumping action than just the view: A huge glass cube called the Edge is actually a 6-ton horizontal elevator, which emerges from inside the walls of Skydeck 88 carrying 12 passengers out over the tower’s east side. As the opaque glass cube reaches its full extension, the reinforced, 45-millimeter-thick (1 3/4-in.) glass becomes clear, giving passengers uninterrupted views below, above, and to three sides. All this is accompanied by recorded sounds of creaking chains and breaking glass—just to scare you more! Actually, it’s not as scary as it sounds, and the ride is only 4 minutes long. For an extra AUD$5.50 on your admission price, you can return at night for a look at the city all lit up.