The Huntington
Location: California, Los Angeles area, Pasadena
Historic large estate with numerous excellent gardens, an art collection, and library housing rare books and manuscripts
Wrigley Botanical Garden
Location: California, Channel Islands, Santa Catalina Island
Memorial and botanical garden with native plants and nice views
Mission San Antonia de Padua
Location: California, East of Big Sur
Mission founded in 1771 with a mission church, garden, museum, and extant ruins of equipment intended to support a community around the mission which never materialized
Biltmore
Location: North Carolina, Asheville
Late 19th century country estate of the Vanderbilts, offering various options to tour the house and grounds, all of which are very nice
Ringling Museum
Location: Florida, Tampa Bay Area, Sarasota
The state art museum of Florida, the Ringing contains a museum of art, a circus museum, the estate home of John and Mable Ringling, and nice gardens
Marie Selby Botanical Gardens
Location: Florida, Tampa Bay Area, Sarasota
Lovely botanical garden including a great collection of exotic epiphytes (orchids, bromeliads, etc)
Castle Hill ♦
Location: Massachusetts, Ipswich
Historic estate with extensive grounds and various outbuildings – perfect for exploring, particularly if you’re here in the off season and have the place to yourself
Hawaii Tropical Botanical Garden
Location: Hawaii, Big Island, North of Hilo
Nice botanical garden with a waterfall and bay views
Larnach Castle
Location: New Zealand, Otago, Dunedin area
Large historic home with beautiful gardens and coastal views