The Taj Mahal is a famous mausoleum located in Agra, India that was built in the mid-17th century by the Mughal emperor Shah Jahan as the final resting place for his beloved wife Mumtaz Mahal. It took over 20 years and 22,000 workers to construct the white marble structure, which features a large dome and four minarets. The Taj Mahal attracts millions of visitors each year and is considered one of the most beautiful buildings in the world due to its intricate carvings and perfect symmetry.