The Dragon's Gorge! That's what the postcard says. Huffpo:

Created by Ohio-born inventor L. A. Thompson, the Dragon’s Gorge opened in 1905. For ten cents, it took passengers on a six-minute scenic railroad ride to the North Pole, past icebergs, a real polar bear and real Eskimos (especially imported from the Arctic) paddling about in canoes on a small lagoon, then on to the Orient, and the dizzying heights of the Rocky Mountains. En route, it visited Havana Harbor the morning after the February 1898 destruction of the USS Maine, a crucial milestone on the road to the Spanish-American War.

The article neglects to mention that the ride also included dragons. Fire-spitting dragons. That particular part of the attraction malfunctioned in 1944, and the subsequent fire led to the entire park closing a few years later.