Duquesne Incline, South Side: Check site for fares. Cash-only; exact fare required. One of Pittsburgh's two inclines (the other being the Monongahela Incline). Observation deck on top looks onto Point State Park.
Phipps Conservatory & Botanical Gardens, Schenley Park: Victorian-style greenhouses. Guided tours available, approx. 90 minutes.
Carnegie Museums of Pittsburgh, which consists of: Carnegie Science Center, Andy Warhol Museum, Carnegie Museum of Art, and Carnegie Museum of Natural History.
The Mattress Factory: Museum of contemporary arts featuring room-scale art installations.
Point State Park, Downtown: Tiny state park at the point where the three rivers meet.
Cathedral of Learning, Oakland: 42-story Cathedral, which is part of the University of Pittsburgh's main campus.
Gateway Clippership: Multiple-times-a-day one-hour sightseeing cruise down the rivers of Pittsburgh.