The Mystery behind the sealed doors of Taj Mahal
Taj Mahal, like any historic fort, has many secret passages and rooms. There are many rooms in the fort or tomb, these are supposedly kept closed since the time of Shah Jahan. These doorways have been sealed with brick and lime.
There are some facts about these hidden doors in Taj Mahal which raises the finger towards the history of Taj Mahal and whether Shanahan actually created this beautiful monument.
https://youtu.be/3fxwYPSFECo