audio, stills, text and or video: Go to zReportage.com to see more - Youth is the largest population bloc in Iran. Over 60 percent of Iran's 73 million people are under 30 years old. Iranian youth are among the most politically active in the 57 nations of the Islamic world. As the most restive segment of Iranian society, the young also represent one of the greatest long-term threats to the current form of theocratic rule. Young activists have influenced the Islamic Republic's political agenda since 1997. After the 2009 presidential election, youth was the biggest bloc involved in the region's first sustained ''people power'' movement for democratic change, creating a new political dynamic in the Middle East. The Islamic Republic forcibly regained control over the most rebellious sector of society through detentions, expulsions from universities, and expanding the powers of its own young paramilitary forces. But youth demands have not changed, and anger simmers beneath the surface. The regime also remains vulnerable because it has failed to address basic socio-economic problems among the young.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

March 11, 2015 - Tehran, Iran - A parkour performer performs in front of a mosque.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 19, 2014 - Tehran, Iran - A masquerade party where people dress up, drink alcohol, and kiss and dance.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 28, 2014 - Tehran, Iran - A gay couple hangs out at home with friends.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 19, 2014 - Tehran, Iran - People kiss and dance at a masquerade party where alcohol is served.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

March 11, 2015 - Tehran, Iran - Young people head to the desert to have illegal parties.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 31, 2014 - Tehran, Iran - A woman poses for a portrait wearing a hijab with wine and religious words (partly from Koran) behind her.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 27, 2014 - Tehran, Iran - A gay couple kiss while holding the Koran as a symbol of the struggle for change.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 30, 2014 - Tehran, Iran - While posing for a portrait, a woman gives a kiss to a gun painted in the colors of USA at an old closed U.S. embassy.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

March 11, 2015 - Tehran, Iran - A parkour performer in Ekbatan in front of a mosque.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 20, 2014 - Tehran, Iran - A woman waits in the hallway with a 'Down with USA' on the wall at an old closed U.S. embassy.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 22, 2014 - Tehran, Iran - As it is illegal to kiss in public, many do so in private.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 22, 2014 - Tehran, Iran - A silhouette of a parkour performer.
© David TesinskyCTK/zReportage.com/ZUMA Press

Jan. 2, 2015 - Tehran, Iran - A parkour performer in Ekbatan.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Jan. 2, 2015 - Tehran, Iran - A DJ jokes around with his parkour friends.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Jan. 2, 2015 - Tehran, Iran - Parkour performers laugh and hang out with each other.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 25, 2014 - Tehran, Iran - A woman gives the peace sign as she poses for a portrait in front of a mural of the Statue of Liberty at an old closed U.S. embassy.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Jan. 2, 2015 - Tehran, Iran - Parkour performers stand for a portrait on a wall of murals.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Jan. 2, 2015 - Tehran, Iran - A woman flashes the peace sign in front of a political poster.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

March 11, 2015 - Tehran, Iran - Young people head to the desert to have illegal parties.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 22, 2014 - Tehran, Iran - A parker performer jumps near the University of Art in Tehran.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Dec. 25, 2014 - Tehran, Iran - A woman shows her peace sign necklace.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Jan. 8, 2015 - Tehran, Iran - Hip Hop and Break Dance performers hang around in Ekbatan.
© David Tesinsky/CTK/zReportage.com/ZUMA Press

Jan. 8, 2015 - Tehran, Iran - A woman stands near an old government painting of Barack Obama pictured alongside Shmer, a villain in Shia Islam.
© David Tesinsky/CTK/zReportage.com/ZUMA Press