Son doong cave is a cave in Phong Nha-Kẻ Bàng National Park, Bố Trạch district, Quảng Bình Province, Vietnam. Currently the biggest known cave in the world, the cave is located near the Laos-Vietnam border. Inside is a large, fast-flowing underground river.
In early August 2013, the first tourist group explored the cave on a guided tour at a cost of US$3,000 each. The group had six members from Australia, Norway, Russia and USA and spent 7 days and 6 nights for the tour. Next exploration trips will be arranged.

An American inventor has built a unique upside-down racecar – and successfully taken it on a 24-hour spin around the LeMons track. Jeff Bloch – also known as SpeedyCop – built his upside down 1999 Chevrolet Camaro by combining it with a decrepit 1990 Ford Festiva. To enter the latest LeMons race the car had to cost less than $500, which Bloch achieved by picking a Festiva model with a worn-out 1.3-litre engine and more than 300,000 kilometres on the clock.

Originally known to the First Nations of the Okanagan Valley as Khiluk, which was- and remains today revered as a sacred site producing therapeutic waters. During World War I the minerals of Spotted Lake were used in manufacturing ammunition. Later the area came under the control of the Ernest Smith Family, for a term of about 40 years. In 1979 Smith attempted to create interest in a spa at the lake. The First Nations responded with an effort to buy the lake; in October 2001 they finally struck a deal. First Nations arranged the purchase of 22 hectares of land for a total of $720,000, and contributed about 20% of the cost. The Indian Affairs Department paid the remainder.

The Prague astronomical clock, or Prague orloj, is a medieval astronomical clock located in Prague, the capital of the Czech Republic. The clock was first installed in 1410, making it the third-oldest astronomical clock in the world and the oldest one still working.