Humayun's tomb, the construction that inspired the Taj Mahal
The tomb of Humayun (1508-1556), second emperor of the Mongol Empire, was the first garden-tomb that was built to honor the Mongol ruler, as commented on the Ancient Origins website. The monument was so spectacular that it inspired architectural innovations during the Mongol Empire, including the famous Taj Mahal in Agra, built a century after Humayun's garden-tomb.