0 (zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems. Names for the number 0 in English include zero, nought (UK), naught (US; ), nil, or—in contexts where at least on... Wikipedia

Galleta Meadows Estate is privately owned desert estate land that consists of many separate plots in Borrego Springs, California and that features over 130 large metal art sculptures. The sculptures were created by Southern California artist Ricardo Breceda via commission from Dennis Avery, the owner of Galleta Meadows. Now deceased and an heir to the Avery label fortune, Mr. Avery located the scu... Wikipedia

The Mud Caves are a popular feature in Anza Borrego Desert State Park in San Diego County, California. The caves, located in the Carrizo Badlands, along the Arroyo Tapiado, were created by water flowing through a thick deposit of silt and are an example of pseudokarst topography. There are at least 22 caves, some up to 1,000 feet (300 m) in length and 80 feet (24 m) in height. Many of the caves a... Wikipedia

Goat Canyon Trestle is a wooden trestle in San Diego County, California. At a length of 597–750 feet (182–229 m), it is the world's largest curved, all-wood trestle. Goat Canyon Trestle was built in 1933 as part of the San Diego and Arizona Eastern Railway, after one of the many tunnels through the Carrizo Gorge collapsed. The railway had been called the "impossible railroad" upon its 1919 complet... Wikipedia