Dennis has visited Dominica, Pakistan, Armenia, Slovenia, Myanmar, São Tomé & Prícipe, Niger, United Arab Emirates, Hungary, The Bahamas, Gabon, Tajikistan, Algeria, Azerbaijan, Estonia, Dominican Republic, Indonesia, San Mmarino, Gambia, Cuba, Saint Kitts & Nevis, Syria, Saudi Arabia, Italy, Macedonia, Monaco, Mali, Timor-Leste, Togo and Palau
Dennis has visited less than thirty-four places