Complex sentence: The buildings, when opened, were some of the tallest Miami had to offer; however, since the start of the building boom in the early 2000s, many skyscrapers which are much taller than the Tequesta Point buildings have been built.
Split into simpler sentences: The buildings, when opened, were some of the tallest Miami had to offer. However, since the start of the building boom in the early 2000s, many skyscrapers which are much taller than the Tequesta Point buildings have been built.