Photo: miiika, CC BY-SA 4.0 Free historic sites in Amman
Photo: miiika, CC BY-SA 4.0 
Photo: Iainsimpsonstewart, CC0 Al-Husseini Mosque
Free outside, paid inside
Photo: Freedom's Falcon, CC BY-SA 3.0 Hashemite Plaza
Free, always
Photo: Tarawneh, CC BY-SA 3.0 Jabal al-Weibdeh
Free, always
Photo: Ken and Nyetta, CC BY 2.0