Next in our series spotlighting residential architecture from each US state is Florida, where lavish waterfront villas designed for tropical living include a house built around its own lagoon and a home with a waterslide.

Casa Bahia by Alejandro Landes
This tropical-modernist mansion in Miami was the first architecture project by Colombian-Ecuadorian filmmaker Alejandro Landes, who built it for himself and his family in 2015, but put it up for sale six months later for $50 million (£40.1 million).
The 20,000-square-foot (1,858-square-metre) estate on the shore of Biscayne Bay includes seven bedrooms distributed across three storeys, and was envisioned as a "framework for living".
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4567 Pine Tree Drive by Studio MK27 Brazilian architect Marcio Kogan of Studio MK27 designed this luxurious Miami Beach residence, featuring a private lagoon where residents can swim with fish, and a bridge walkway that snakes over the top.
Measuring 100 by 30 feet (30 by nine metres), the manmade lagoon is organically filtered and surrounded by vegetation to provide an "authentically manicured" natural environment for the Florida home.
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Villa Allegra by Oppenheim Architecture
Miami studio Oppenheim Architecture overhauled a local house to allow residents to divide their time between indoors and out.
The 9,000-square-foot (836-square-metre) Villa Allegra was adapted from a "nondescript, one-st...