Helsinki Energy Office Building Kampinkuja 2, 00100 Helsinki, Finland Self-guided. • Outdoors. The coffee shop located in the customer-service floor is open for public. • All year Free entry
Book House Keskuskatu 1, 00100 Helsinki, Finland Self-guided • Indoors/outdoors • All year Free entry
Rautatalo Office Building Keskuskatu 3, 00100 Helsinki, Finland Self-guided • Indoors/outdoors • All year Free entry