Valentyn, 25, lifts weights on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Roman, 78, lifts weights on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

People exercise on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Roman (C), 78, lifts weights on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Roman (R), 40, lifts weights on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

People exercise on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Svetlana, 21, lifts weights on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

People exercise on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

People exercise on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Mikhail, 21, lifts weights on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Mikhail, 21, lifts weight on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

People exercise on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

A worker repairs dumbbells on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

A person lifts dumbbells on August 18, 2017 at an open air gym in Ukraine's capital Kiev. Founded?in the 1970s, the busy open air gym, called Kachalka in Ukrainian (or?Pumping) is located in the city center and offers for free hundreds??f?different self-made gym machines, made out of scrap metal. / AFP PHOTO / GENYA SAVILOV

Men work out under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun, with a homeless dog in the foreground, in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

An elderly man lifts metal weights under severe sun in a scrap metal outdoor gym in Hydropark city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)

A man lifts metal weights under severe sun in a scrap metal outdoor gym in a city park on the Dnipro river bank in Ukraine's capital Kiev on Friday, Aug. 11, 2017. A heat wave has hit Ukraine as temperature reached 33 C (91 F). (AP Photo/Efrem Lukatsky)