21.   To the right, gleaming white atop Montmarte, is Sacre Coeur, the Roman Catholic basilica visited by millions of worshippers and tourists each year.

22.   It is visited by millions every year.

23.   Built as a mausoleum for a Moghul empress, the Taj Mahal is visited by millions of tourists every year.

24.   It is visited by millions every year and is the biggest money-spinner for the tourist city of Agra.

25.   Millions of worshippers visit Mecca each year for Eid al-Adha, bringing in significant revenues for the Saudi kingdom.