The first picture is the The Giant’s Causeway . Located on the northeast coast of Northern Ireland. The steps themselves are composed of about 40,000 interlocking basalt columns. While most of them are hexagonal, some are four, five, seven or eight sides. There are some nice legends about the steps and how they were formed, but we’ll just stick with the science for today and say they were caused by volcanic eruptions. When the lava cooled horizontal contraction fractured in a similar way to drying mud, with the cracks propagating down as the mass cooled, leaving pillarlike structures. The other pictures are of an amazing visitor’s center, strangely enough named Giants Causeway Visitor Centre. So those not particularly into geology, might enjoy the cool modern architecture.