Touring the greenhouses .  There were 7 or 8 in total - each with a different climate.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/72559856@N00">Patrick</a> from Merrimack, NH, United States
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/pdbreen/4730418552/">Montreal Botanical Gardens</a>