Yokohama Ramen Museum

I can't say enough good things about this place. The museum part is interesting, and there are some displays and a cute little gift store but the biggest surprise to this place are the restaurants in the basement. Here you will see a 1958 replica of a street and houses of Shitamachi. There are 9 different ramen restaurants to choose from and 'outside' on the street, there is a street performer. The one we saw was just amazing. The atmosphere of this place is just fantastic. 

Yokohama Hakkeijima Sea Paradise

It was my second time visiting this place and I loved it more this time round. Shawna and I had much more time to wander around and for the price of the Aquarium, we were able to go to four areas of this huge park.

Dolphin Fantasy. Stand underneath while the dolphins swim all around you.

An Ocean Sunfish

Ride the paddle boats in amongst the dolphins.

Sankeien Garden

Sankeien is a spacious Japanese style garden in southern Yokohama which exhibits a number of historic buildings from across Japan. There is a pond, small rivers, flowers and wonderful scrolling trails that make you think you are in Kyoto rather than Yokohama.

The garden was built by Hara Sankei and opened to the public in 1904. Among the historic buildings exhibited in the park are an elegant daimyo (feudal lord) residence, several tea houses and the main hall and three storied pagoda of Kyoto's old Tomyoji Temple.

(Credit to http://www.japan-guide.com. All information and links above are from their site)