I really haven't been to too many places in my skateboarding,so all my favorite spots are my hometown spots, first up is The Everson Museum.
Basically, its like our Love Park, when we'd get kicked out of a spot the cops would tell us to goto the Eve. They have everything, high ledge, low ledge, low to high, the 2 block gap, the pink ledge gap, a few other gaps, curbs, manual pads, super smooth ground, and when the fountain is drained in the fall you have a whole new area to skate, not to mention the sculptures work as great skateable objects. The Everson used to let us skate there no problem because they considered skateboarding an art form, but recently they put up no skating signs and put skate stoppers on the ledges but there easy to pop off. I spent most of my youth skating here.
We also have a few main spots like the Herald Journal rails, the Mony 7 stairs, the Fleet Bank ledges, Inner Harbor(make sure you have a board goalie because if you fuck up and your deck goes in the water, its gone forever), Marshall Street, The SU campus has a bunch of stuff from giant hills to bomb to rails of all sizes to a giant marble plaza but you gotta be quick there, security doesn't play. Its also nice to skate up there due to all the hot ass college girls. We also have a secret school spot only a few know about tucked away in the extreme ghetto, nothing but ledges of all sizes, a nice grass gap, and a 5 stair, plus this crazy ass manual pad. We have some ill spots in the 3 but the Everson will always be the greatest to me, like I said, its like our Love Park or EMB.