ABC News October 20, 2017

Drone footage captures apocalyptic aftermath of ISIS in Raqqa

WATCH: Drone footage shows widespread Raqqa destruction

Though victory has been declared in the battle against ISIS in the Syrian city of Raqqa, drone footage and photos show a city decimated by a months-long siege and years of civil war.

Erik De Castro/Reuters
Syrian Democratic Forces (SDF) fighters ride atop of military vehicles as they celebrate victory in Raqqa, Syria, Oct. 17, 2017.

Syrian Democratic Forces celebrated their hard-won victory around Naim Square, which was where ISIS fighters once carried out public beheadings and executions during their occupation of the city. Also known as "Paradise Square," it had been a symbol of brutality when Raqqa was the "capital" of ISIS's self-declared caliphate.

Youssef Rabih/EPA
Naim Square roundabout following the liberation of Raqqa, Syria, Oct. 18, 2017. The location was known as 'Roundabout of Hell', was used by ISIS extremists to perform public executions, beheadings and crucifixions during their three-year rule of the city.

Now, the once-vibrant metropolis of 200,000 people has been left in ruins following fighting that began during the Syrian uprising and escalated with the arrival of ISIS in late 2013. The battle to retake Raqqa began on June 6, following heavy airstrikes by U.S. forces.

US-backed Syrian force declares victory over ISIS in its former 'capital,' Raqqa

In the past few days, journalists were able to enter the war-torn city. Images show streets piled with debris and nearly every building appears to have suffered heavy damage.

Erik De Castro/Reuters
A fighter of Syrian Democratic Forces walks amidst the ruins of buildings in Raqqa, Syria, Oct. 18, 2017.
Erik De Castro/Reuters
A fighter of Syrian Democratic Forces takes a selfie at a clock tower in Raqqa, Syria Oct. 18, 2017.

Raqqa will have to be cleared of landmines, explosives and other hazards before the long road to recovery can begin and residents can return.

Gabriel Chaim/AP
A heavily destroyed street in Raqqa, Syria, Oct. 19, 2017.
Gabriel Chaim/AP
An image taken from drone video shows damaged buildings in Raqqa, Syria, Oct. 19, 2017.
Ivor Prickett/The New York Times via Redux
A destroyed bedroom in Raqqa, Syria, Oct. 16, 2017.
Distribution Airbus DS/AFP/Getty Images
Central Raqqa showing Naim Square, top left, and the city's municipal stadium in a satellite image taken Oct. 16, 2017.