Godsway

"Through it is the Godsway, where the Dothraki drag the sacred idols of the cities and peoples they've broken. Along one side, stone gods look down on you from cracked thrones with chipped and stained faces, their names lost to time. Across the road, monsters watch you pass. Black iron dragons with jewels for eyes, roaring griffins, manticores with barbed tails poised to strike and other terrible beasts from every corner of Essos. But there is nothing to fear. If these gods and devils had any power, they would never have ended here."

- Jorah Mormont

The Godsway is a road in Vaes Dothrak. It is where the Dothraki bring the idols of the gods of the civilisations that they have conquered.

Season 1
As Drogo declares his intention to conquer the Seven Kingdoms, he swears to bring their broken gods back to Vaes Dothrak.

In the books
In the A Song of Ice and Fire novels, the Godsway is a broad and grassy road that runs through the heart of Vaes Dothrak in a straight line, stretching from the Horse Gate to the Mother of Mountains. It passes through the Eastern and Western Markets, the lake known as the Womb of the World and a pit where important ceremonies are performed.