According to the dictionary, "exotic" means "from a foreign country" and "far away" and not "glamorous."
This being the case, then as a resident of the United Kingdom, the most "exotic" location visited was Sydney, Australia - which is almost like a sister of London with the same building design and street layout. It also incorporates English names like Hyde Park, Surrey Hills, Kings Cross and Oxford Street. The only two differences were the palm trees and having a harbour at an estuary - which is crossed by a bridge designed after the one at Newcastle Upon Tyne, an English industrial city.
The most exotic locations which I have visited which has a touch of "glamour" includes the Great Barrier Reef islands of Green Island, Low Isles, Whitsunday Island with Macona Inlet and the mainland resort of Port Douglas in northern Queensland. Other places with a "foreign feel" are at the Mediterranean, including Taormina in Sicily, Lindos and Pefkos in Rhodes with their characteristic white houses, and Israel, especially Jerusalem. In Asia, the beach of Sentosa Island at Singapore was so tropical, that I found myself humming Barry Manilow's song "Copacabana"! In the USA the most "exotic" city I 've been to was San Diego, California with Balboa Park and the Old Town. And not to mention the country around Phoenix, Arizona with its Cacti semi-desert, and of course, the Grand Canyon.