Where was Nicholas II and his family held?

Nicholas II and his family were held in various locations during their captivity after the Russian Revolution, primarily in Tsarskoye Selo and later in Yekaterinburg. They were ultimately confined in the Ipatiev House, where they lived under house arrest until their execution on July 17, 1918. The house was chosen for its isolation and security, reflecting the Bolsheviks' desire to prevent any rescue attempts.