Boldt Castle, Heart Island
Boldt Castle is landmark tourist attraction on Heart Island, so named because of its heart-like shape, in the Thousand Islands region of New York State, USA.
Construction began in 1900, as part of the millionaire George Boldt's plan to give a six-storey stone castle to his wife on Valentine’s Day 1905.
Among the architectural features of the island are; the Yacht House, a huge playhouse, the Power House, and a 120-room ‘fairytale’ castle which was modelled on Rhineland Castle.
However, construction came to an abrupt halt in 1904 when Boldt’s wife, Louise, died. Unable to face returning to the island, Boldt decided to leave the structures as a monument to his love.
The buildings were left in their unfinished state for 73 years, gradually falling victim to harsh weather and vandalism, until the Thousand Islands Bridge Authority purchased the island in 1977 for $1. They spent around $15 million restoring the masonry structures to the condition they were in when the original construction was halted. They also completed the stained glass dome, marble floor and grand staircase woodwork.
Since its redevelopment, the island has become a popular tourist attraction, and has a continuing romantic appeal for the many couples who choose it as a wedding destination.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
International Electrician Day, 10 June 2025
Celebrating the role of electrical engineers from André-Marie Amperè, today and for the future.
New guide for clients launched at Houses of Parliament
'There has never been a more important time for clients to step up and ...ask the right questions'
The impact of recycled slate tiles
Innovation across the decades.
EPC changes for existing buildings
Changes and their context as the new RdSAP methodology comes into use from 15 June.
Skills England publishes Sector skills needs assessments
Priority areas relating to the built environment highlighted and described in brief.
BSRIA HVAC Market Watch - May 2025 Edition
Heat Pump Market Outlook: Policy, Performance & Refrigerant Trends for 2025–2028.
Committing to EDI in construction with CIOB
Built Environment professional bodies deepen commitment to EDI with two new signatories: CIAT and CICES.
Government Grenfell progress report at a glance
Line by line recomendation overview, with links to more details.
An engaging and lively review of his professional life.
Sustainable heating for listed buildings
A problem that needs to be approached intelligently.
50th Golden anniversary ECA Edmundson apprentice award
Deadline for entries has been extended to Friday 27 June, so don't miss out!
CIAT at the London Festival of Architecture
Designing for Everyone: Breaking Barriers in Inclusive Architecture.
Mixed reactions to apprenticeship and skills reform 2025
A 'welcome shift' for some and a 'backwards step' for others.
Licensing construction in the UK
As the latest report and proposal to licence builders reaches Parliament.
Building Safety Alliance golden thread guidance
Extensive excel checklist of information with guidance document freely accessible.
Fair Payment Code and other payment initiatives
For fair and late payments, need to work together to add value.
Pre-planning delivery programmes and delay penalties
Proposed for housebuilders in government reform: Speeding Up Build Out.
High street health: converting a building for healthcare uses
The benefits of health centres acting as new anchor sites in the high street.