From ancient Puebloan cliff dwellings to European-era log cabins, there are lots of interesting historic man-made structures you can visit across the US. We take a look at some of the oldest man-made ...

Biocubes is a visualization comparing the mass of the living world (biomass) to the mass that’s been generated by humans ( ...

While national parks provide an escape from the bustling city, this urban attraction is in the heart of a Midwest metropolis ...