- Poro Point
- Poro Point Special Economic and Freeport Zone (formerly American Military Base – Wallace Air Station)
- Thunderbird Resorts
- Boardwalk
- The La Union Botanical Garden (8 kilometers from the city) – is a 10 hectare garden (Barangay Cadaclan), the home of various species of rare plants and a sanctuary of wild animals.
- Battle of Bacsil Ridge Marker
- Pindangan Ruins (Barangay Parian)
- Hobbitat Forest Park
- Poro Point Baywalk (Barangay Poro)
- Seven Hills
- Capitol Hill (Barangay II) home of the Provincial Capitol
- Pagoda Hill also known as Filipino-Chinese Friendship Park or Chinese Pagoda (Barangay II)
- Heroes’ Hill & Freedom Park Stairway (153 steps) located at the eastern portion of Capitol Hill
- Bethany Hill (Barangay II)
- Mirador Hill (Barangay II)
- Mariner's Hill (Barangay Catbangen)
- Miracle Hill (Barangay Pagdaraoan)
- Christ the Redeemer (25 foot statue, Reservoir Hill, Barangay I)
- Poro Point Lighthouse
- Moro Watch Tower (Barangay Carlatan)
- La Union Science Centrum & Museum (LUSCM has 5 Galleries: Kadaklan Burial Site and Environmental Gallery, Museum, Dark Room, Main Science Gallery and Portable Planetarium (Barangay Cadaclan)
- Ma-Cho Temple
- Tomb of Unknown Soldier (Barangay Madayegdeg)
- Cathedral of St. William the Hermit (Barangay II, Poblacion)
- Kasay Marine Sanctuary: 30 hectares MPA, featuring the 50 years old Giant clam or Tridacna gigas (Barangay Canaoay)
- Children's Park (Barangay II, City Plaza)
- 10.6 hectares Engineered Sanitary Landfill (Barangay Mameltac)
- La Union Trade Center (beside the City Hall)