Grow this bridge on top of your fridge. Amaze grandma and your friends at work. This model contains a 4 piece bridge form, plus 2 lush clouds that will together form that iconic vista of the Golden Gate Bridge swallowed up in the fog. All in a cloudy 7x5x2" box. We have a whole Terraforming series of our take on the classic crystal growing tree, so decided to expand to monuments too! Recommended for science gifts, nature gifts, an all ages fun hands-on DIY kit. A great fit in many retail locations: art museum, science museum, childrens museum, botanical garden gift store, toy stores, souvenir shops, paper & novelty stores, stationery stores For a travel souvenir or anytime gift, these crystal monuments are a delight to build and grow.