Olympic heritage: In which city was the official Olympic Museum opened to showcase the history and spirit of the Games?

Introduction / Context:
The Olympic Museum preserves and promotes the legacy of the Olympic Movement. Knowing its location is a straightforward but important sports GK fact tied to the International Olympic Committee’s administrative base.

Given Data / Assumptions:

• Institution: The Olympic Museum.
• Ask: City of opening/location.
• Context: IOC headquarters and Olympic heritage centers.

Concept / Approach:
The IOC is headquartered in Lausanne, Switzerland. The Olympic Museum is likewise situated in Lausanne, serving as a cultural hub for exhibitions, collections, and educational programs about the modern Olympic Games and their ideals.

Step-by-Step Solution:

Verification / Alternative check:
IOC publications and official tourism pages repeatedly cite Lausanne as home to the Olympic Museum overlooking Lake Geneva, reinforcing this association.

Why Other Options Are Wrong:

• Istanbul / Rome: Not the site of the Olympic Museum.
• Athens: Birthplace of the ancient Games and host of 1896 and 2004, but not the museum’s location.

Common Pitfalls:
Assuming Athens houses all Olympic institutions due to its ancient heritage. Administration and heritage curation are centered in Lausanne for the modern movement.

Final Answer:
Lausanne