The Gate of All Nations, Persepolis, Iran

Founded in 518 BC as the capital of the Achaemenid empire by Darius the Great, Persepolis is one of the greatest cities of the ancient world.

Brandenburg Gate, Berlin, Germany

Berlin’s most famous landmark and site of many historic moments, the Brandenburg Gate was built by the Prussian King Frederick William II as the main entrance to the city.

Buland Darwaza, Uttar Pradesh, India

The magnificent entrance to the Jama Masjid mosque at Fatehpur Sikri – capital of the Mughal Empire from 1571 to 1585 – is the highest gateway in the world at 131 feet (40m). built in 1576 by the Mughal emperor Akbar

Catherine’s Palace, Pushkin, Russia

The Rococo extravagance of Catherine’s Palace, the sumptuous summer residence of Catherine the Great, is spellbinding. The palace’s gateways are particularly spectacular, echoing the building’s bright blue-and-white façades with their striped columns and elaborate gilded details.

The Gate of Honour, Versailles, France

An exact replica of the original wrought-iron and gold-leaf gate that marked the entrance to the Palace of Versailles' cour d'honneur courtyard was erected in 2008, more than 200 years after the original was pulled down during the French Revolution.

Bab Zuweila, Cairo, Egypt

The towering twin minarets of Bab Zuweila, the southern gateway to the old medieval citadel of Cairo, were multi-purpose