\'The Sunken Palace\' is the biggest of the hundreds of underground reservoirs underneath the streets of Istanbul, dating from Byzantine Constantinople.
\'The Sunken Palace\' is the biggest of the hundreds of underground reservoirs underneath the streets of Istanbul, dating from Byzantine Constantinople.
\'The Sunken Palace\' is the biggest of the hundreds of underground reservoirs underneath the streets of Istanbul, dating from Byzantine Constantinople.
\'The Sunken Palace\' is the biggest of the hundreds of underground reservoirs underneath the streets of Istanbul, dating from Byzantine Constantinople.