Hibiya Park

Created in 1903, Hibiya Park, or Hibiya Koen (日比谷公園), is one of the earliest examples of public parks based on Western-style designs.
It is said to be based on the German-style, though there is also a small Japanese garden where some part of the stone wall of former Edo Castle remains. (See the article on Edo Castle (6) for the trails of moats of Edo Castle.)
The location of the park used to be where residences of Daimyo (domain lords) were placed in the Edo period.

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Edo Castle (part 6) in Chiyoda-ku, Tokyo

Remains of the outer moats of Edo Castle.

Marunouchi-Ondo Bon-odori Taikai

In late August, a relatively large bon-odori dance festival is held at the park every year See the article on Bon-odori at Hibiya Park for details.

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Marunouchi-ondo Da-bon-odori Taikai in Chiyoda-ku, Tokyo

A large bon-odori dance festival is held at Hibiya Park next to the Imperial Palace in late August.

Chrysanthemum Exhibition

Chrysanthemum Exhibition is held annually for about two weeks in November. This exhibition started in 1914 and about 2,000 chrysanthemums will be on display (admission free).