What other travelers are saying about Kakuōzan Nittai-ji
Nittaiji, located in the Kakuōzan district of Nagoya, was founded in 1904 to enshrine a relic (the ashes) of Siddhartha Gautama (the Buddha) that had been discovered in northern India in 1898.  These relics were donated to the Kingdom of Thailand and in 1900 offered to Japan by Chulalongkorn (King Rama V of Thailand). 
In gratitude and symbolising Japan–Thailand friendship, the temple was created as a non-sectarian Buddhist institution (a rare format in Japan) and named combining the characters for “Japan” (日) and “Thailand” (泰).
The temple ground is quite big, though there are only a few temple buildings. Compared to the Kōshō-ji temple, this Kakuo-zan Nittai-ji temple is grander and polished, it is more curated (and manicured, if I may). I personally like the Kōshō-ji temple as it is more intimate.
The one cool thing about this temple is that if you want to get a fortune slip, there's a capsule toy machine where you can put 100 yen inside to do so, which is quite an unique experience.
The Temple is unique in East Asian nations, especially in Japan, because the Temple was built with significant inputs and efforts of the Thai or Southern Buddhist sects and Thai government. The difference of the Temple from other Japanese temples can be easily seen in its pagoda top, worship hall, and putti trees in front of the worship halls.
The Temple has large parking lot for the worshippers and visitors. The access for the Temple is free and parking is also free.
While not as exciting as other locations, this temple is one of a few that has ties with Buddhist in Thailand, which is very unique. Also one of a few temples that offer on site parking for free.