- Kelly Street (Homewood)
- 7200 Kelly Street, Pittsburgh, PA, 15208
- Kennywood Park
- 4800 Kennywood Blvd., West Mifflin, PA, 15122
- Kingfly Spirits
- 2613 Smallman Street, Pittsburgh, PA, 15222
- Klimpton Hotel Monaco
- 620 William Penn Place, Pittsburgh, PA, 15219
- Klvn Coffee Lab
- 6600 Hamilton Avenue, Pittsburgh, PA, 15206
- Koppers Building
- 436 Seventh Avenue, Pittsburgh, PA, 15219
- Lamp Theatre
- 222 Main Street, Irwin, PA, 15642
- Las Velas Mexican Restaurant
- 21 Market Square, Pittsburgh, PA, 15222
- Latitude 40
- 200 Quinn Drive, Pittsburgh, PA, 15275
- Lawrenceville Historic District
- 100 43rd Street, Pittsburgh, PA, 15201