In the 21st century, modern designs based on glass facades became popular. Examples of this modern Western style were the Kabul City Center and Golbahar Center. The National Assembly building opened in 2015 had elements of modern Islamic Mughal architecture, considered to have the largest dome in Asia. The Indian architecture could also be influenced by the fact it was built by the government of India, but its carving and large porch represent Afghan traditional architectural forms. The new Ministry of Defense building followed traditional, Islamic and Western designs inspired by the Pentagon. Another mix of these designs appeared on the Paghman Hill Castle completed in 2014. Increasing numbers of high rises have been built in this period, with the Kabul Markaz tower in 2020 becoming the city's first to break the  tall barrier. The construction boom with modern high-rises throughout the 2010s had led to a major change in the city's skyline.