MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of car wheels in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of cast iron brake rotors in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of cast iron brake rotors in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : Cast iron brake rotors a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs. ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of cast iron brake rotors in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of logs in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of cast iron brake rotors in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment of cast iron brake rotors in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : People working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A car wheel is seen in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : The exercise equipment is seen in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs ( Sefa Karacan - Anadolu Agency )

MOSCOW, RUSSIA - JULY 17 : A man working out in a handmade outdoor gym in Moscow's Timiryazevsky Park, Russia on July 17, 2017. The outdoor gym exists since 2012, all the exercise equipment in the park is made by sport enthusiasts using metal tubes, tyres, car wheels, cast iron brake rotors, kettlebells, and logs. ( Sefa Karacan - Anadolu Agency )