Church of the Covenant, an 1867 Gothic Revival masterpiece, has one of the largest collections of liturgical windows by Louis Comfort Tiffany in the country; its 236 foot steeple is the tallest in Boston
The cholla cactus has been nicknamed the teddy bear cactus due to it’s friendly look but do not be fooled!; also known as the jumping cactus, the chollas have a way of snagging feet and legs with thorns that are difficult to extract
I've visited the 9/11 Memorial a couple of times so skipped it on this trip; One World Trade Center (ie Freedom Tower) is still jaw-dropping as the tallest building in the Western Hemisphere (the same architect designed Willis Tower and Burj Khalifa)