7 Historical Sites in St. Thomas Worth Visiting (2026 Guide)

A visit-ready guide to the best historical sites in St. Thomas, from the 1679 Skytsborg Tower and 99 Steps to Fort Christian, plus how to see them on a cruise day.
Fort Christian St. Thomas: A Visitor’s Guide (2026)

Fort Christian, St. Thomas is the oldest building on the island and a Charlotte Amalie landmark. See its history, what to visit, and how to get there.
What “Skytsborg” Actually Means

The Danish origins of the tower, and why “protection castle” stuck for three centuries.