The document summarizes several UNESCO World Heritage sites located in Spain and Romania. It describes the Burgos Cathedral in Spain, which began construction in 1221 and features Gothic architecture. It also mentions Teide National Park in Spain, which contains the highest peak in the country, and the wooden churches of Maramureș in Romania from different time periods showcasing architectural styles. Finally, it briefly outlines the Danube Delta in Romania, which forms Europe's largest river delta and is home to many bird and fish species.