Ready for an awe-inspiring challenge? Standing at almost 5 feet tall, the LEGO Eiffel Tower set for adults is the flagship model in the LEGO Travel & History series. And it is not just one of the tallest LEGO sets ever, it is got one of the largest piece counts too with 10001 pieces for an immersive experience from start to finish. It also makes a top gift idea for travel or history lovers.