A home in Marbella, on the Mediterranean coast of Spain offers views of the sea while sunbathing or swimming in its rooftop glass-bottom pool.

Known as the Jellyfish House, it was designed by international architecture and design firm Wiel Arets Architects and features two means of navigating floors with a ‘fast’ and a ‘slow’ set of stairs that connect the home’s four levels. The house features a ‘fast’ and a…