Olympic rings mounted on the Eiffel Tower ahead of Summer Games

The Paris Olympics organizers on Friday unveiled a display of the five Olympic rings mounted on the Eiffel Tower as the French capital marks 50 days until the start of the Summer Games.

The structure of rings, made of recycled French steel, was displayed on the south side of the 135-year-old landmark in central Paris, overlooking the Seine River. Each ring is  30 feet in diameter.

Thousands of athletes will parade through the heart of the French capital on boats on the Seine along a 3.7-mile route in the opening ceremony at sunset on July 26.