Check out Pittsburgh's must-see buildings below:

Fallingwater

A post shared by Fallingwater (@fallingwaterwpc) on Apr 10, 2017 at 5:44am PDT

Architect: Frank Lloyd Wright Built: 1935 Type: Residence Address: 1491 Mill Run Road, Mill Run, PA 15464 Open to the Public: Yes, must book in advance. Hours: March 4 to December 3: 10:00am - 4:00pm (varies, confirm with website) Cost: $30 Website: www.fallingwater.org/

Duncan House

A post shared by David Harrity (@davidharrity) on Jun 3, 2017 at 6:42pm PDT

Architect: Frank Lloyd Wright Built: 1957 Type: Residence, now a Hotel Address: 187 Evergreen Ln, Acme, PA 15610, USA Open to the Public: Yes Website: polymathpark.com

Kentucky Knob

A post shared by Yuta Ikawa (@yuta.ikawa) on Jul 9, 2015 at 1:42am PDT

Architect: Frank Lloyd Wright Built: 1956 Type: Residence Address: 723 Kentuck Road, Chalk Hill, PA 15421, U.S.A Open to the Public: Yes, must book in advance Hours: March - October: 9:00am - 5:00pm, November: 9:00am - 3:00pm, December: 10:00am - 3:00pm (Saturday & Sunday only) Cost: $25 Website: kentuckknob.com/

Cathedral of Learning

A post shared by Danny Reese (@dreesewx) on Jul 11, 2017 at 6:08pm PDT

Architect: Charles Klauder Built: 1936 Type: Institutional Address: 4200 Fifth Ave, Pittsburgh, PA 15260, USA Open to the Public: Yes Website: www.tour.pitt.edu

Gateway Center Station

A post shared by Yasser Ibrahim (@yasser_photography) on Feb 6, 2017 at 4:00am PST

Architect: Edge Studio, Pfaffmann & Associates Built: 2011 Type: Transit Hub Address: Stanwix Street and Liberty Avenue, Pittsburgh, PA, U.S.A. Open to the Public: Yes

PPG Place

A post shared by auplowboy (@auplowboy) on Jul 11, 2017 at 11:57am PDT

Architect: John Burgee Architects, Philip Johnson Built: 1984 Type: Office Address: Two PPG Place, Pittsburgh, PA 15222, U.S.A. Open to the Public: Yes Hours: Monday to Friday: 6:00am - 1:00am (opens at 7:00am on Saturday & Sunday) Website: www.ppgplace.com/ [mappress mapid="15"]