Jeff Bezos closes out Prime Day by standing on top of Amazon's massive glass spheres wearing climbing ropes and a hard hat

• Amazon CEO Jeff Bezos climbed Amazon's spheres, a group of three cylindrical glass-enclosed structures at the company's headquarters in Seattle.
• The billionaire founder of Amazon posted a photo of himself to Instagram standing at the top of one of the spheres while wearing climbing gear and an Amazon-branded hard hat.
• "Huge thank you to Prime members everywhere and to the incredible Amazonians who made Prime Day work," he wrote in a caption accompanying the photo.
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Amazon CEO Jeff Bezos apparently celebrated the close of Prime Day on Tuesday by standing on top of the Amazon spheres, a group of three giant glass-enclosed structures at the company's headquarters in Seattle.

The billionaire founder of Amazon posted a photo of himself to Instagram on Tuesday wearing climbing ropes and an Amazon-branded hard hat while standing at the top of one of the three spheres, which stand up to 95 feet high. 

He held a sign over his head that read: "THANK YOU."

"I love my job and tap dance into work every day, but not usually on top of The Spheres," Bezos wrote in a caption accompanying the photo. "Huge thank you to Prime members everywhere and to the incredible Amazonians who made Prime Day work."

Amazon's Prime Day, a 48-hour sales event, began on Monday. The shopping frenzy is expected to generate $5.8 billion in sales globally this year, according to Coresight Research.