Yes, another Denmark park has made the list. Bakken is the oldest theme park in the world; its doors first opened in 1583. That means this park is older than the United States itself! In addition to traditional park rides like bumper cars and flume logs, the park boasts six different roller coasters. For serious park enthusiasts, consider combining trips to Tivoli Gardens and Bakken during one thrill-seeking Danish vacation. Bakken is just 10 km outside Copenhagen, which is where Tivoli Gardens is located.