MBS / Gardens by the Bay (Singapore)

You can see the Marina Bay Sands (MBS) hotel, which looks like a ship seated on three pillars.

This photo is taken from Gardens by the Bay, close to the tourists information desks.

The pillars you see scattered around are petrified wood. The colourful mural is just artwork covering the renovation works of the up and coming burger joint Shake Shack.

Wiki explains Petrified wood as:

Petrified wood (from the Latin root petro meaning 'rock' or 'stone'; literally 'wood turned into stone') is the name given to a special type of fossilized remains of terrestrial vegetation. Petrifaction is the result of a tree or tree-like plants having been replaced by stone via a mineralization process that often includes permineralization and replacement.[1] The organic materials making up cell walls have been replicated with minerals (mostly silica in the form of opal, chalcedony, or quartz). In some instances, the original structure of the stem tissue may be partially retained. Unlike other plant fossils, which are typically impressions or compressions, petrified wood is a three-dimensional representation of the original organic material.