After the formation of the moon its surface was heavily cratered by meteoroid impacts. Later on, after the early cratering episode had died down, a series of giant impacts gouged out vast lunar basins. Volcanic eruptions later filled these basins with dark basaltic rock. The moon is has two types of terrain: the young, flat dark seas and the older, lighter "highlands" surrounding them.
Several large craters - including the vast, flat floored Ptolemaeus, will be on the terminator - that boundary between day and night on the moon. The battered southern hemisphere with newer craters overlaying older craters is in sharp contrast the northern hemisphere with its dark, smooth lava plains pockmarked with relatively few recent craters.
The view through a telescope will be spectacular. The giant impact basin Mare Imbrium (the Sea of Showers) in the northern hemisphere is ringed by several chains of mountains and one of them - the Apennines - will be emerging from the lunar night. Look for mountain tops catching the first rays of sunlight while the ground below them is still in darkness.
The craters Aristillus and Autolycus, surrounded by the dark flat terrain of Mare Imbrium, look pretty good through a telescope at any magnification. The rims and central mountain peaks of these craters will cast shadows because they're so close to the terminator.