In the 18th and 19th century, the city of Charleston thrived on the merchandise, which was grown in its many plantations. Charleston's main produce were rice and indigo, which the city managed to export, many thanks to its seaside location. When slavery was abolished in 1865, many plantations were abandoned and burned. Thankfully, five Charleston plantations are still left intact, which serve as areas of historic and educational importance to many tourists. One such plantation is the Drayton Hall, which remains to be the oldest, unrestored plantation in America still open for tours. Drayton Hall was established in 1738, and has withstood many civil wars and horrifying earthquakes. Another site is the Magnolia Plantation and Gardens. The gardens, which are more than 300 years old, are considered as the oldest public garden in America. America's oldest landscape gardens can be found at the Middleton Place House Museum and Stableyards. It was established in 1741 by Henry Middleton, President of the First Continental Congress. Charleston is also home to the Charleston Tea Plantation, which is the only tea plantation in the country. Completing the round-up is the Boone Hall Plantation and Gardens. The plantation, which is 320 years old, was famous for its two produce: pecans and cotton.