Climbing and bouldering, what else? Following, a tick list of sorts.

Frank at Pine Creek and MJ at Bear Crag

NORTH AMERICA

Arizona
01: Jack's Canyon
02: The Pit
03: Queen Creek

California
01: Bear Crag
02: Big Chief (Truckee)
03: Black Mountain (Ojai)
04: Brickyard (Santa Barbara)
05: Buttermilk Boulders
06: Clark Canyon
07: Clark Mountain
08: Consomm� River (F)
09: Devil's Punchbowl
10: Dike Wall
11: Echo Cliffs (a favorite choss pile)
12: Emerald Bay (Tahoe)
13: Frustration Creek
14: Half Dome (Yosemite, as if you needed that hint)
15: Happy Boulders
16: High Desert (F)
17: Horse Flats (F)
18: Indian Cove (F)
19: Jack's New Area (shhh...)
20: Joshua Tree
21: Keller Peak (F)
22: Kern Limestone (good rock, bad climbs--5 leaver 'biners, bad approach)
23: (Limestone) Cave
24: Lizard's Mouth (Santa Barbara)
25: Malibu State Park and the Dam
26: Mount Rubidoux (F)
27: Mount Williamson (closed due to some "frog")
28: New Jack City
29: Owens River Gorge
30: Pine Creek
31: Point Dume (F)
32: Purple Stones
33: Riverside Quarry
34: Stoney Point (stinky)
35: Suicide Rock
36: Table Mountain (Sonora)
37: Tahquitz (MJ)
38: Tick Rock

Colorado
01: Boulder Sport Park (ugh)
02: Clear Creek Canyon
03: Horsetooth Reservoir
04: Shelf Road

Idaho
01: Boise

Nevada
01: Mount Charleston
02: Red Rocks

New Mexico
01: Cochiti Mesa
02: Enchanted Tower (MJ)

New York
01: Shawangunks (F)

Oregon
01: Smith Rock

Utah
01: Chuckawalla Wall (St. George)
02: The Pyramid (St. George)
03: Soul Asylum (St. George)
04: Welcome Springs--Sumo, Wailing, and Cathedral walls (St. George)
05: Woodbury Road Crags--Black & Tan and Kelly's Rock walls (St. George)
06: Maple Canyon

Wyoming
01: Sinks Canyon

EUROPE

Germany
01: Betzenstein Kletterwand
02: Castellwand (F)
03: Luisenwand

Spain
01: Rodellar